Sensitive Skin Explained: Causes, Care, and Solutions

Sensitive skin is a common yet complex concern that affects people in different ways. Whether you experience occasional redness, persistent irritation, or sudden reactions to products, understanding sensitive skin is the first step towards managing it effectively. In this guide, we explore the causes, triggers, and best practices for caring for sensitive skin, along with expert-backed skincare recommendations tailored to support and strengthen the skin barrier.

1. Understanding Sensitive Skin

What is sensitive skin?

Sensitive skin is a heightened skin reactivity to environmental factors, skincare products, or internal triggers. It often presents as redness, irritation, itching, or discomfort, even when exposed to mild external stressors. This reactivity stems from a compromised skin barrier, which makes the skin more susceptible to irritants and moisture loss.

What are the characteristics of sensitive skin?

Sensitive skin is prone to redness or flushing and is easily irritated by skincare, weather, or lifestyle changes. It often feels tight, dry, or uncomfortable and is more reactive to fragrances, harsh chemicals, or certain active ingredients. Those with sensitive skin may experience a burning or stinging sensation when applying products and find their sensitivity increases in extreme temperatures or pollution.

What are the four types of sensitive skin?

Sensitive skin can be categorised into four main types:

1. Naturally Sensitive – Often genetically predisposed, seen in conditions like rosacea or eczema. The skin has a lower tolerance for external stressors and is more reactive overall.

2. Environmentally Sensitive – Reacts to external aggressors such as pollution, weather, and UV exposure. Common triggers include wind, cold, and fluctuating humidity levels.

3. Reactive Sensitive – Reacts strongly to specific ingredients in skincare or household products, often experiencing burning, itching, or visible irritation.

4. Thinned Barrier Sensitivity – Caused by a compromised skin barrier due to over-exfoliation, ageing, or harsh skincare. This type of sensitivity often leads to chronic dryness, tightness, and increased vulnerability to irritants.

Is sensitive skin a symptom of something?

Yes, sensitive skin can be a symptom of underlying conditions such as eczema, rosacea, or allergies. It can also indicate an impaired skin barrier, which is critical in protecting the skin from external stressors. If you experience persistent sensitivity or sudden changes, consulting a skin professional can help identify the root cause.

2. Causes and Triggers of Sensitive Skin

What causes sensitive skin?

Sensitive skin results from a weakened skin barrier, making it more vulnerable to external irritants. Several factors contribute to sensitivity:

• Genetics – Some individuals are naturally predisposed to having a more reactive skin type.

• Environmental aggressors – Pollution, UV rays, and temperature extremes can weaken the skin barrier over time.

• Harsh skincare routines – Over-exfoliation, frequent use of strong acids, or incorrect layering of actives can compromise skin health.

• Hormonal fluctuations – Pregnancy, menopause, and changes in stress levels can impact the skin’s sensitivity.

• Lifestyle factors – Diet, hydration, and sleep are crucial in skin resilience.

Does a deficiency cause sensitive skin?

Certain nutrient deficiencies can affect the skin’s ability to repair itself and maintain a strong barrier. For example, omega-3 fatty acids are essential for maintaining skin hydration and reducing inflammation, while ceramides are vital for a strong skin barrier and preventing moisture loss. Vitamin D plays a role in immune function and skin repair, and zinc helps control inflammation and supports wound healing. While a deficiency may not directly cause sensitive skin, it can certainly contribute to increased reactivity or worsen existing issues. 

What illness causes hypersensitive skin?

Certain medical conditions can lead to hypersensitive skin by disrupting its natural barrier or triggering inflammation. These include:

• Eczema – A chronic inflammatory condition that causes dryness, itchiness, and increased reactivity.

• Rosacea – A vascular disorder that results in persistent redness and heightened sensitivity, particularly on the face.

• Lupus – An autoimmune disease that can make the skin extremely reactive, especially to sunlight.

• Histamine intolerance – May lead to itching, redness, or swelling in response to certain foods or environmental factors.

Other conditions include psoriasis, contact dermatitis, fibromyalgia, and hormonal changes,  all of which can make skin more reactive and in need of extra care and hydration.

Why has my skin suddenly become so sensitive?

If your skin has recently become red, irritated, or reactive seemingly out of nowhere, you're not alone. Subtle shifts in lifestyle, skincare, or health can quietly disrupt your skin’s barrier and trigger sensitivity. Key triggers for sudden skin sensitivity:

• Overuse of actives like retinoids, exfoliating acids (AHAs/BHAs), or vitamin C can weaken the skin barrier.

• Seasonal or climate changes (e.g., cold air, low humidity, wind) can strip the skin of moisture, increasing reactivity.

• Hormonal fluctuations from menstruation, pregnancy, or changes in stress levels may affect skin balance.

• Stress can impair the skin’s barrier function, leading to inflammation and irritation.

• Over-cleansing or scrubbing may remove protective oils, leaving skin vulnerable and dry.

• Neglecting hydration can make the skin more prone to sensitivity and discomfort.

Identifying what’s triggering your sensitivity is key - whether it’s a product, the weather, or your lifestyle. Give your skin time to repair by simplifying your routine, focusing on hydration, and protecting your barrier. 

Why is my skin suddenly reacting to everything?

If your skin is reacting to all products, it likely has a severely compromised barrier. This can happen due to over-exfoliation, excessive use of active ingredients, or harsh environmental exposure without proper protection. These factors can lead to sensitised skin, a temporary condition where your skin becomes overly reactive due to external stressors. It could also stem from an allergic reaction or an underlying condition that increases sensitivity. Restoring and protecting the skin barrier is key to calming these reactions.

3. Identifying Sensitive Skin

What are the signs of sensitive skin?

Sensitive skin is more reactive than normal skin, meaning it tends to respond strongly to external factors such as skincare ingredients, weather changes, and environmental pollutants. Common signs include:

• Redness or Flushing After Cleansing or Applying Skincare: Your skin may turn pink or red when using certain products, especially those with active ingredients, fragrances, or harsh surfactants. This redness often fades but can be a sign of sensitivity to specific formulations.

• A Feeling of Tightness, Dryness, or Discomfort: Sensitive skin may struggle to maintain its natural moisture barrier, leading to dehydration and a tight or uncomfortable sensation, particularly after cleansing.

• Increased Sensitivity to Temperature Changes: You may notice your skin becoming red, irritated, or even itchy when transitioning between hot and cold environments (such as moving from an air-conditioned room into the summer heat or stepping into a warm shower after being in the cold).

• A Burning or Stinging Sensation When Using Certain Products: If your skin reacts with an immediate burning or stinging feeling when applying skincare, this could indicate sensitivity to specific ingredients like alcohol, essential oils, or chemical exfoliants.

What Does Sensitive Skin Look Like?

Sensitive skin often appears slightly red or irritated, with dry patches, uneven texture, or a tendency toward mild flushing. It may feel tight, uncomfortable, or reactive after exposure to common triggers such as skincare ingredients, weather changes, stress, or even friction from fabrics. While symptoms can vary, sensitive skin generally experiences temporary irritation that subsides once the trigger is removed.

What Does Hypersensitive Skin Look Like?

Hypersensitive skin is more reactive and may present with intense redness, visible capillaries, swelling, or rashes. It is highly prone to burning, stinging, tingling, or itching sensations, even when exposed to mild formulations or water. This heightened sensitivity can make it challenging to introduce new products, and reactions may last longer or become more severe over time. Those with hypersensitive skin often need to take extra precautions to protect their skin barrier and reduce triggers.

How to tell the difference between sensitive skin and an allergic reaction?

While sensitive skin and allergic reactions share some symptoms, they differ in intensity and cause:

• Sensitive Skin:

• Reacts consistently to general triggers like fragrance, weather, or certain active ingredients.

• Symptoms are usually mild to moderate and subside when the irritant is removed.

• May experience persistent but manageable discomfort, such as redness, dryness, or mild stinging.

• Allergic Reaction:

• Caused by an immune system response to a specific allergen (such as a certain preservative, fragrance, or plant extract).

• Often leads to more severe symptoms, including hives, intense swelling (especially around the eyes and lips), blistering, or prolonged redness that doesn’t subside quickly.

• Can worsen with repeated exposure, making it important to identify and avoid the allergen.

If you’re unsure whether you have sensitive skin or are experiencing an allergic reaction, it’s best to perform a patch test before using new products. If you experience severe or persistent reactions, consulting a dermatologist can help pinpoint the cause and provide guidance on suitable skincare solutions.

4. Sensitive Skin vs Other Skin Types

What is the difference between sensitive and reactive skin?

Sensitive skin is naturally predisposed to irritation due to a weakened or delicate skin barrier. It tends to experience ongoing redness, discomfort, or reactivity to environmental factors, skincare products, or stress. Sensitive skin typically requires consistent care with gentle, barrier-strengthening ingredients to maintain balance.

Reactive skin, on the other hand, is not always sensitive but responds aggressively to specific triggers, such as harsh skincare products, extreme temperatures, or allergens. This means someone with otherwise normal or resilient skin can experience occasional reactions but doesn’t have chronic sensitivity. Reactive skin may show sudden redness, burning, or stinging, but usually returns to normal once the trigger is removed.

What’s the difference between sensitive and sensitised skin?

Sensitive skin is a skin type you're born with - it's genetic and tends to react easily to environmental factors, products, or stress. It’s consistent and ongoing, requiring gentle care to avoid flare-ups.

Sensitised skin, on the other hand, is a temporary condition caused by external triggers like overuse of actives, harsh products, or environmental damage. Even skin that’s normally resilient can become sensitised when its protective barrier is compromised.

How do I know if my skin is sensitive or sensitised?

If your skin has always been reactive, easily irritated, or prone to redness, it's likely sensitive. If the irritation is new and follows changes in products, lifestyle, or environment, it's likely sensitised and may improve once the trigger is removed.

How is sensitive skin different from oily skin?

Sensitive skin is prone to redness, irritation, and discomfort, while oily skin produces excess sebum, leading to shine and breakouts. The two differ in their behaviour, as one is reactive and the other is oil-prone. That said, you can have oily-sensitive skin, where skin overproduces oil but is still easily irritated. In this case, it’s important to use lightweight, calming products that hydrate without overwhelming the skin.

What are the differences between sensitive skin and normal skin?

Normal skin has a balanced barrier that retains moisture and resists irritation. It rarely reacts and generally tolerates most skincare ingredients. Sensitive skin, in contrast, has a weaker barrier, making it prone to redness, stinging, or inflammation. While normal skin stays balanced under most conditions, sensitive skin needs extra support (think gentle, soothing formulas that help reinforce the barrier and reduce reactivity).

Is sensitive skin and dry skin the same?

While often overlapping, dry and sensitive skin are different. Dry skin lacks oil, leading to flakiness and tightness. It needs nourishing ingredients like ceramides and squalane. Sensitive skin reacts to irritants, even if it's not always dry. Both skin types benefit from barrier-supporting skincare, but their needs aren’t always the same.

What is the difference between sensitive and acne-prone skin?

Sensitive skin reacts to skincare, weather, and stress, often showing redness or discomfort. Acne-prone skin is caused by excess oil, clogged pores, and bacteria, leading to breakouts. It may become sensitive from overuse of harsh treatments, but it isn’t inherently reactive. For both concerns, a gentle, non-stripping routine is key to managing breakouts while keeping irritation under control.

How does sensitive skin compare to combination skin?

Combination skin has both oily and dry areas, typically with excess oil through the T-zone (forehead, nose, and chin) and dryness on the cheeks. It often requires balancing products that can hydrate without clogging pores or worsening oiliness. Sensitive skin, however, is primarily about reactivity and irritation, meaning even gentle ingredients can trigger discomfort. 

You can also have combination-sensitive skin, where you're dealing with both oil imbalance and reactivity. In this case, skincare needs to do a bit of everything: calm sensitivity, hydrate dry patches, and keep oiliness in check, all without triggering irritation. Look for gentle, fragrance-free formulas that hydrate and balance, without being too rich or overly stripping. 

What is considered the opposite of sensitive skin?

The opposite of sensitive skin is resilient skin, a complexion with a strong, well-functioning barrier that effectively retains moisture and defends against external stressors. Resilient skin is less reactive to environmental changes, skincare ingredients, and common irritants, allowing it to tolerate a wider range of formulations, including active ingredients like retinoids and exfoliating acids.

5. Managing and Caring for Sensitive Skin

a) General Care

How do I take care of sensitive skin?

Caring for sensitive skin starts with a gentle, barrier-supporting approach. Use fragrance-free, non-irritating skincare, avoid harsh exfoliants or strong actives, and simplify your routine to focus on hydration and protection. Always apply a broad-spectrum SPF to shield against environmental stressors.

Can sensitive skin go back to normal?

While sensitivity is often genetic or chronic, you can strengthen your skin barrier over time with the right care. By avoiding irritants, using barrier-repairing ingredients like ceramides and squalane, and maintaining a consistent, science-led routine, sensitivity can be significantly reduced.

How do you get rid of sensitivity naturally?

Supporting your skin internally and externally is key. A nutrient-rich diet with antioxidants, omega-3s, and hydration helps, while soothing, microbiome-balancing skincare strengthens the barrier. Avoiding harsh weather, stress, and synthetic fragrances also minimises irritation.

What calms sensitive skin?

Sensitive skin benefits from a gentle, soothing approach that reduces inflammation, strengthens the barrier, and minimises triggers. Consider incorporating the following into your routine:

• Calming Ingredients:

• Niacinamide – a multitasking vitamin that helps soothe irritation, reduce redness, and improve skin barrier function

• Centella Asiatica (Cica) – a botanical extract known for its anti-inflammatory and healing properties, ideal for calming reactive skin

• GHK-Cu (Copper Tripeptide) – supports skin regeneration, helps repair damage, and reduces visible sensitivity

• Probiotics – rebalance the skin’s microbiome, helping to improve skin resilience and reduce flare-ups

• Kava Pepper Root Extract – a powerful calming agent that reduces skin discomfort and sensory irritation

• Barrier-Repairing Moisturisers:

Look for creams or lotions with ceramides, squalane, hyaluronic acid, or panthenol to restore hydration without clogging pores.

• Minimal-Ingredient Formulations:

Fewer ingredients mean fewer potential triggers. Opt for products free from fragrance, alcohol, and harsh preservatives.

• Cooling or Gel-Based Products:

Lightweight textures with a cooling effect can help soothe flare-ups and reduce redness on contact.

• Consistent Protection:

Daily use of a broad-spectrum SPF is essential to protect sensitive skin from UV damage and environmental stress.

b) Skincare Routine

What is the best skincare routine for sensitive skin?

Caring for sensitive skin starts with a gentle, well-balanced routine that prioritises hydration, barrier support, and protection. Each step plays a crucial role in keeping your skin calm, comfortable, and resilient. Here's how to build an effective routine:

1. Gentle Cleanser

• Opt for a pH-balanced, non-foaming formula to cleanse without stripping moisture.

• Ingredients like amino acids, oat extract, or chamomile help soothe and protect.

2. Soothing Essence or Serum

• Look for calming, barrier-supporting ingredients:

• GHK-Cu– Soothes irritation and reduces redness  

• Probiotics – Reinforce the skin’s microbiome and boost resilience.

• Niacinamide – Strengthens the skin barrier and overall skin health.

3. Hydrating, Barrier-Repairing Moisturiser

• Choose a lightweight, nourishing formula with:

• Ceramides – Strengthen the skin barrier.

• Squalane – Mimics natural oils for deep hydration.

• Peptides – Support skin repair and renewal.

4. SPF – Daily Sun Protection

• Mineral-based sunscreens with zinc oxide are ideal for sensitive skin.

• Look for added soothing agents like allantoin or panthenol for extra comfort.

6. Sensitive Skin and Product Reactions

Is fragrance bad for sensitive skin?

Fragrance is a common trigger for those with sensitive skin. While not inherently harmful, synthetic or even some natural fragrances can cause irritation, redness, or stinging in sensitised individuals. For those with sensitive skin, it’s best to avoid products with added fragrance or opt for fragrance-free formulations to minimise the risk of irritation and support skin health.

Can someone with oily skin use sensitive skin products?

Oily skin can still be sensitive. Even though oily skin produces more sebum, it can be prone to irritation and reactivity, especially if the skin barrier is compromised. Using barrier-supportive products designed for sensitive skin can help calm irritation and strengthen the skin’s protective barrier without clogging pores. Look for lightweight, non-comedogenic formulas that provide hydration and soothe inflammation, ensuring the skin remains balanced and protected.

Can a person with normal skin use sensitive skin products?

Even if your skin isn’t prone to irritation, sensitive skin products offer a preventative approach to skincare. Their gentle, soothing formulations are designed to support long-term barrier health and reduce the likelihood of developing sensitivities. They’re ideal for those who want a minimal, low-irritation routine or who are using other actives (like retinoids) that can occasionally sensitise the skin.

Are amino acids good for sensitive skin?

Yes, amino acids are naturally found in the skin and play a vital role in maintaining hydration, pH balance, and barrier function. Because they’re skin-identical, amino acids are typically very well tolerated, even by reactive or sensitised skin types. They support the skin’s Natural Moisturising Factor (NMF), making them ideal for replenishing moisture without causing irritation.

What to use for sensitive face skin?

Stick with gentle, barrier-repairing products that include ingredients like ceramides, amino acids, peptides, and soothing agents such as panthenol or allantoin. Simplicity and consistency are key.

What not to use on sensitive skin?

Avoid harsh exfoliants, strong acids, high concentrations of actives (like retinol or vitamin C in unstable forms), essential oils, and synthetic fragrances. These can all increase sensitivity or damage an already weakened barrier.

7. Best Products for Sensitive Skin

a) Cleansing and Double Cleansing

What is the best cleanser for sensitive skin?

For sensitive skin, the ideal cleanser is one that gently removes impurities without disrupting the skin’s natural barrier. The SumaNurica Amino Acid Gentle Cleanser is specifically formulated to cleanse without stripping moisture or causing irritation. It uses mild amino acid surfactants that maintain hydration and soothe reactive skin.

Is double cleansing good for sensitive, acne-prone skin?

Double cleansing can effectively remove makeup, sunscreen, and impurities without harsh rubbing or over-drying. For sensitive, acne-prone skin, it’s important to use gentle, non-comedogenic products. Starting with a soothing cleansing balm, followed by a mild cleanser, helps maintain the barrier while deeply cleansing. The SumaNurica Purifying Enzyme Cleansing Balm is infused with Squalane, Ceramides and Sunflower Seed Oil to nourish as it cleanses, helping to restore essential lipids and support long-term skin resilience. 

What products should I use for double cleansing sensitive skin?

Use the SumaNurica Purifying Enzyme Cleansing Balm to gently lift away makeup, sunscreen, and excess oils without stripping. Follow with the SumaNurica Amino Acid Gentle Cleanser to cleanse the skin’s surface while preserving hydration and calming sensitivity.

Are cleansing balms good for sensitive skin?

Provided they contain soothing, non-irritating ingredients. The SumaNurica Purifying Enzyme Cleansing Balm is ideal for sensitive skin as it gently dissolves impurities and supports the skin barrier with nourishing enzymes.

b) Moisturisers and Hydration

Which moisturiser is good for sensitive skin?

The SumaNurica ECM Ultra-Light Ceramide Moisturiser is excellent for sensitive skin, especially if oily or combination. It strengthens the skin barrier, locks in hydration, and soothes irritation with ceramides and barrier-supportive ingredients.

What hydrating face masks are best for dry, sensitive skin?

Look for masks that repair and restore the barrier with gentle, nourishing ingredients. The SumaNurica Collagen Essence Hydrating Face Mask is designed to hydrate deeply, soothe irritation, and support barrier repair, making it ideal for dry, sensitive skin.

Is a collagen mask good for sensitive skin?

Yes, collagen masks can be beneficial as long as they are formulated without irritants. The SumaNurica Collagen Essence Hydrating Face Mask has a patented, skin-identical Collagen Essence, which supports skin elasticity and hydration while calming sensitive skin.

c) Anti-Aging and Serums

How to choose anti-wrinkle serums for sensitive skin?

Select serums that combine gentle, reparative peptides and antioxidants without harsh actives or fragrances. Ingredients like peptides and growth factors can support collagen production and repair without triggering sensitivity.

How to pick anti-wrinkle eye creams that work well for sensitive skin?

Choose eye serums or creams with soothing peptides and anti-inflammatory properties. Avoid fragrances and irritants. The SumaNurica Hexapeptide5 Anti-Wrinkle Eye Serum smooths fine lines while being gentle enough for delicate, sensitive eye areas.

What anti-ageing serums are suitable for sensitive skin?

The SumaNurica GHK-Cu Repairing Serum is designed to reduce redness and support skin repair, making it ideal for sensitive, ageing skin. For deeper repair, the SumaNurica EGF Cellular Repair Serum helps regenerate skin cells and improve resilience without irritation.

What skincare products are recommended for dry and sensitive ageing skin?

Products that hydrate, repair, and protect are essential. The SumaNurica Probiotic Energising Essence improves hydration and soothes sensitivity, while the SumaNurica 3D Collagen Plumping Complex firms and replenishes moisture. The SumaNurica Pro5 Age-Defying Peptide Cream reduces wrinkles and nourishes without irritation.

d) Active Ingredients and Sensitivity

Is vitamin C suitable for sensitive skin?

Yes, but it should be a gentle, stabilised form such as magnesium ascorbyl phosphate. Using strong or high concentrations of vitamin C can cause irritation, so starting with low concentrations is best.

Is retinol ok for sensitive skin? Should people with sensitive skin use retinol?

Retinol can be used, but with caution. Sensitive skin types should start with low concentrations and use retinol intermittently to avoid irritation. Pair with hydrating and barrier-repairing products to minimise dryness and sensitivity.

Is niacinamide good for sensitive skin?

Absolutely. Niacinamide strengthens the skin barrier, reduces redness, and balances oil production. SumaNurica Nonapeptide Niacinamide Rejuvenating Serum is ideal for oily, sensitive skin needing balance and repair.

e) Vegan and Natural Skincare

Is vegan skincare better for sensitive skin?

Vegan skincare can be better if formulations avoid common irritants like synthetic fragrances, alcohol, or harsh preservatives. However, ‘vegan’ does not automatically mean ‘sensitive-skin friendly.’ Always check ingredient lists for potential irritants. SumaNurica combines biotech ingredients that are clean, effective, and gentle, supporting sensitive skin without compromising performance.

Soothe, Protect & Strengthen Sensitive Skin

Discover the next generation of skincare with SumaNurica. Our innovative biotechnology is designed to care for sensitive and easily irritated skin. Our biotechnology-driven formulas calm irritation, deeply hydrate, and strengthen delicate skin without compromising results.

Ultra-gentle and effective, these formulations rebalance, protect, and improve skin resilience while helping reduce visible sensitivity.

Explore our complete Sensitive Skin range to find skincare that soothes, protects, and supports delicate skin.