Below is every ingredient in Klairs All Day Airy Mineral Sunscreen Spf50 Pa explained, its standout actives, and the side effects reported in research for those actives — analysed for Indian skin.
Flags derived from the ingredient list using dermatology reference data (fungal-acne substrate, comedogenicity, EU allergens). General guidance, not a diagnosis.
Answers are derived from the printed ingredient list and dermatology reference data — general guidance, not a diagnosis or a therapeutic claim.
Zinc oxide is a mineral (inorganic) UV filter that provides broad-spectrum protection against UVA and UVB radiation by scattering and absorbing light. It also has mild astringent and soothing properties and is used in sunscreens, diaper creams, and barrier preparations.
Niacinamide (vitamin B3) is a water-soluble active that supports the skin barrier, regulates sebum, brightens hyperpigmentation, and reduces inflammation. It is widely tolerated across skin types and used in concentrations commonly ranging from 2% to 10%.
Camellia Sinensis Leaf Extract (green tea extract) is derived from the leaves of the tea plant and is rich in polyphenols, particularly catechins like EGCG. It is used in skincare for its antioxidant, anti-inflammatory, and soothing properties.
Ectoin is a naturally derived amino acid derivative (extremolyte) that stabilizes proteins and cell membranes, helping skin retain moisture and resist environmental stressors such as UV radiation and pollution. It is used in skincare for hydration, barrier support, and soothing of irritated or sensitive skin.
Phytosphingosine is a naturally occurring sphingolipid that helps maintain the skin barrier and also exhibits antimicrobial and anti-inflammatory properties. It is commonly incorporated into moisturizers and barrier-repair formulations to support ceramide synthesis and skin integrity.
Tocopherol (vitamin E) is a lipid-soluble antioxidant used in skincare to protect skin and formulations from oxidative damage caused by free radicals and UV exposure. It also functions as a skin-conditioning and emollient agent and can stabilize oils against rancidity.
Aggregated from the active ingredients in this product.
| Reported effect | How often | Notes |
|---|---|---|
| Irritation or sensitivity | Very rare | Purified water itself is essentially inert; rare reactions are attributable to contaminants or accompanying ingredients rather than water. |
| Transepidermal water loss aggravation in compromised skin | Rare | Evaporation of water from products may transiently increase dryness in very compromised skin barriers if occlusives are absent. |
| White cast / cosmetic residue on skin | Common | Non-micronized particles can leave a visible white film, especially on darker skin tones. |
| Dryness or mild skin tightness | Uncommon | Due to its astringent nature, particularly in high concentrations. |
| Clogged pores / acne aggravation | Uncommon | More often attributed to occlusive base ingredients than to zinc oxide itself. |
| Contact irritation or stinging | Rare | Generally well tolerated; irritation often relates to other formulation components. |
| Allergic contact dermatitis | Very rare | True allergy to zinc oxide is uncommon; reactions usually involve other excipients or fragrances. |
| Mild skin irritation | Rare | Occasional transient redness or stinging, more likely on compromised or sensitive skin. |
| Contact allergy / sensitization | Very rare | Rarely reported; salicylate derivatives can theoretically trigger sensitization in predisposed individuals. |
| Eye irritation | Rare | May cause irritation on direct ocular contact. |
| Contact allergy/sensitization | Very rare | Isolated reports; esters of this type are generally considered low sensitizers. |
| Comedogenicity (clogged pores) | Very rare | Considered low risk, but may be a concern for acne-prone individuals in heavy formulations. |
| Enhanced penetration of co-formulated irritants | Uncommon | As a penetration enhancer it may increase absorption and irritation potential of other actives. |
| Mild skin irritation or redness | Rare | Generally well tolerated; occasional irritation reported in sensitive individuals. |
| Comedogenicity (pore clogging) | Uncommon | Considered low-to-moderate comedogenic potential; may contribute to breakouts in acne-prone skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
| Ingredient | What it does |
|---|---|
| Aqua Solvent / vehicle | Aqua (water) is the most common base ingredient in skincare formulations, serving as a solvent that dissolves water-soluble components and forms the medium for emulsions. It has no direct treatment activity and primarily contributes to texture, spreadability, and product delivery. |
| Zinc Oxide Key active UV filter / skin protectant | Zinc oxide is a mineral (inorganic) UV filter that provides broad-spectrum protection against UVA and UVB radiation by scattering and absorbing light. It also has mild astringent and soothing properties and is used in sunscreens, diaper creams, and barrier preparations. |
| Butyloctyl Salicylate Emollient / UV filter solubilizer | Butyloctyl Salicylate is a lipophilic salicylate ester used in cosmetic formulations primarily as an emollient and as a solubilizer that enhances the dissolution and stability of organic UV filters in sunscreens. It also provides mild spreadability and a smooth skin feel. |
| Propylheptyl Caprylate Emollient/skin-conditioning agent | Propylheptyl Caprylate is a lightweight ester emollient used in skincare formulations to soften and condition the skin, providing a non-greasy, spreadable feel. It functions as a base/texture-enhancing ingredient rather than a treatment active. |
| Propanediol Humectant/solvent | Propanediol is a plant-derived glycol used in skincare as a humectant, solvent, and penetration enhancer that improves moisturization and the spreadability of formulations. It also helps solubilize other ingredients and can boost the efficacy of certain actives. |
| Cetyl Ethylhexanoate Emollient / skin-conditioning ester | Cetyl Ethylhexanoate is a lightweight synthetic ester (cetyl alcohol combined with 2-ethylhexanoic acid) widely used as an emollient and spreading agent in skincare and cosmetics. It provides a smooth, non-greasy feel, improves texture, and helps soften and condition the skin. |
| Hydrogenated Coconut Oil Emollient / skin-conditioning agent | Hydrogenated Coconut Oil is a saturated, semi-solid fat produced by hydrogenating coconut oil, used in cosmetics as an emollient, occlusive, and texture-enhancing base ingredient. It softens skin and improves the spreadability and stability of formulations. |
| Isododecane Emollient/solvent | Isododecane is a lightweight, volatile branched-chain hydrocarbon used as a solvent and emollient in cosmetics. It spreads easily and evaporates quickly, improving texture and wear in products like long-lasting makeup, primers, and sunscreens. |
| Niacinamide Key active Cell-communicating / barrier-repair active | Niacinamide (vitamin B3) is a water-soluble active that supports the skin barrier, regulates sebum, brightens hyperpigmentation, and reduces inflammation. It is widely tolerated across skin types and used in concentrations commonly ranging from 2% to 10%. |
| Polyglyceryl-6 Polyricinoleate Emulsifier | Polyglyceryl-6 Polyricinoleate is a polyglycerol ester of polyricinoleic (castor oil-derived) fatty acids used primarily as a non-ionic, water-in-oil emulsifier and dispersing agent in cosmetic formulations. It helps stabilize emulsions and improve texture, particularly in oil-rich products and color cosmetics. |
| Glycerin Humectant | Glycerin is a widely used humectant that attracts and retains water in the skin, helping to hydrate the stratum corneum and support barrier function. It is considered safe and well-tolerated across most skin types and concentrations. |
| Sodium Chloride Thickener / viscosity adjuster | Sodium chloride (table salt) is commonly used in cosmetics as a thickening and viscosity-control agent, particularly in surfactant-based cleansers, and also acts as a mild abrasive in scrubs. It is generally well tolerated and considered a formulation ingredient rather than a treatment active. |
| Moringa Oleifera Seed Oil Emollient / antioxidant | Moringa Oleifera Seed Oil is a plant-derived oil rich in oleic acid and tocopherols used in skincare for its emollient, moisturizing, and antioxidant properties. It helps soften skin, reinforce the skin barrier, and may provide mild protection against oxidative stress. |
| Camellia Sinensis Leaf Extract Key active Antioxidant | Camellia Sinensis Leaf Extract (green tea extract) is derived from the leaves of the tea plant and is rich in polyphenols, particularly catechins like EGCG. It is used in skincare for its antioxidant, anti-inflammatory, and soothing properties. |
| Disteardimonium Hectorite Rheology modifier / suspending agent | Disteardimonium Hectorite is a modified clay (quaternized hectorite) used in cosmetic formulations as a thickener and gellant, primarily in anhydrous and oil-based systems such as sunscreens, foundations, and lipsticks. It helps suspend pigments and prevent ingredient separation. |
| Triethylhexanoin Emollient/Skin-conditioning agent | Triethylhexanoin is a synthetic triester of glycerin and ethylhexanoic acid used as a lightweight emollient and solvent in cosmetic formulations. It improves spreadability, imparts a smooth non-greasy skin feel, and helps dissolve other oil-soluble ingredients. |
| Methyl Methacrylate Crosspolymer Texture enhancer / mattifying agent | Methyl Methacrylate Crosspolymer is a synthetic polymer used in cosmetics as a film-former and oil-absorbing powder that imparts a smooth, soft-focus, matte feel to formulations. It functions primarily as a sensory and texturizing base ingredient rather than a skin-treatment active. |
| Triethoxycaprylylsilane Coating/surface treatment agent | Triethoxycaprylylsilane is a silane-based ingredient primarily used to coat and hydrophobically treat powders and pigments such as titanium dioxide, zinc oxide, and iron oxides, improving their dispersion, water resistance, and texture in cosmetic formulations. It functions as a formulation aid rather than a skin-treatment active. |
| 1,2-Hexanediol Humectant / preservative booster | 1,2-Hexanediol is a synthetic diol used in skincare as a humectant and solvent that also enhances the antimicrobial efficacy of formulations, often allowing reduced or preservative-free systems. It helps maintain product stability while contributing mild moisturizing properties. |
| Ectoin Key active Protective osmolyte / humectant | Ectoin is a naturally derived amino acid derivative (extremolyte) that stabilizes proteins and cell membranes, helping skin retain moisture and resist environmental stressors such as UV radiation and pollution. It is used in skincare for hydration, barrier support, and soothing of irritated or sensitive skin. |
| Polyglyceryl-2 Dipolyhydroxystearate Emulsifier | Polyglyceryl-2 Dipolyhydroxystearate is a non-ionic, polyglycerol-based emulsifier used primarily to stabilize water-in-oil (W/O) emulsions in creams, lotions, and sun care products. It is derived from glycerin and polyhydroxystearic acid and is valued as a PEG-free, gentle alternative for forming stable emulsions. |
| Polymethyl Methacrylate Filler / texturizing agent | Polymethyl methacrylate (PMMA) is a synthetic acrylic polymer used in cosmetics as spherical microbeads or particles to improve texture, provide a smooth, soft-focus finish, and aid in oil absorption and even coverage. In dermal fillers it is used as non-biodegradable microspheres for soft tissue augmentation. |
| Panthenol Humectant / skin-conditioning agent | Panthenol (provitamin B5) is converted to pantothenic acid in the skin, where it acts as a humectant and helps support skin barrier function and hydration. It is also used for its soothing and mild anti-inflammatory properties in topical formulations. |
| Butylene Glycol Humectant / solvent | Butylene glycol is a small diol commonly used in skincare as a humectant, solvent, and viscosity-reducing agent that helps dissolve other ingredients and improve skin feel. It is widely regarded as safe and non-sensitizing for the majority of users at cosmetic concentrations. |
| Lauryl Dimethicone/Polyglycerin-3 Crosspolymer Emulsifier/Gelling Agent | Lauryl Dimethicone/Polyglycerin-3 Crosspolymer is a silicone-based crosspolymer used in cosmetic formulations as a water-in-silicone emulsifier and texture modifier. It helps stabilize emulsions and impart a smooth, silky skin feel, particularly in color cosmetics and skincare creams. |
| Caprylyl Glycol Humectant / skin-conditioning agent and preservative booster | Caprylyl glycol is a multifunctional emollient and humectant derived from caprylic acid that helps hydrate skin and enhance the efficacy of preservatives in formulations. It is widely used as a stabilizing and conditioning base ingredient rather than a therapeutic active. |
| Glyceryl Caprylate Emollient / antimicrobial co-preservative | Glyceryl Caprylate is a monoglyceride derived from glycerin and caprylic acid, used in skincare as an emollient, moisturizing agent, and skin-conditioning component with mild antimicrobial properties that support preservation. It is commonly employed to help stabilize formulations and reduce reliance on conventional preservatives. |
| Ceramide NP Skin-barrier replenishing lipid / emollient | Ceramide NP (formerly ceramide 3) is a naturally occurring sphingolipid that helps restore and maintain the skin's lipid barrier, reducing transepidermal water loss and improving hydration. It is widely used in moisturizers and barrier-repair formulations. |
| Phytosphingosine Key active Skin-conditioning agent / barrier-supporting lipid | Phytosphingosine is a naturally occurring sphingolipid that helps maintain the skin barrier and also exhibits antimicrobial and anti-inflammatory properties. It is commonly incorporated into moisturizers and barrier-repair formulations to support ceramide synthesis and skin integrity. |
| Hydrogenated Lecithin Emollient / Emulsifier | Hydrogenated lecithin is a phospholipid derived from lecithin through hydrogenation, used in skincare as an emulsifier, emollient, and skin-conditioning agent. It also helps stabilize formulations and form liposomes that can aid delivery of other ingredients. |
| Dipropylene Glycol Solvent/humectant | Dipropylene glycol is a clear, low-viscosity glycol used in cosmetics primarily as a solvent, humectant, and viscosity-reducing agent. It helps dissolve fragrances and other ingredients while contributing mild moisture-retention properties. |
| Tocopherol Key active Antioxidant | Tocopherol (vitamin E) is a lipid-soluble antioxidant used in skincare to protect skin and formulations from oxidative damage caused by free radicals and UV exposure. It also functions as a skin-conditioning and emollient agent and can stabilize oils against rancidity. |
| Sodium Citrate pH adjuster / chelating agent | Sodium citrate is the sodium salt of citric acid used in skincare primarily as a buffering agent to stabilize formulation pH and as a chelator that binds metal ions to improve product stability. It is a base/formulation ingredient rather than a therapeutic active. |
Key active = does the main work. Ingredient explanations are drawn from public databases & literature.
Peer-reviewed papers on the active ingredients in this product, via PubMed.