Based on its listed ingredients, Cos Iq Niacinamide Vitamin B3 10Percent Face Serum contains fragrance/allergens — details in the flags below.
Below is every ingredient in Cos Iq Niacinamide Vitamin B3 10Percent Face Serum 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.
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%.
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. |
Mild transient stinging or irritation | Uncommon | More likely at high concentrations or on compromised/broken skin. |
Tacky or sticky skin feel | Common | A cosmetic sensation rather than an adverse reaction, more noticeable at higher concentrations. |
Contact dermatitis or allergic reaction | Rare | True allergy to glycerin is uncommon; patch-test positivity is infrequent. |
Skin dehydration in very low humidity | Rare | In very dry environments humectants may draw water from deeper skin layers if not paired with an occlusive. |
Mild transient flushing or redness | Uncommon | More likely at higher concentrations or in sensitive skin; usually subsides quickly. |
Tingling, stinging, or burning sensation | Uncommon | Often associated with higher percentages or compromised barrier. |
Contact irritation or itching | Rare | Generally dose-dependent and resolves with discontinuation. |
Allergic contact dermatitis | Very rare | Documented in isolated case reports; true sensitization is unusual. |
Mild contact irritation | Rare | Occasional redness or stinging, usually in sensitive or compromised skin. |
Comedogenicity / clogged pores | Rare | Generally low comedogenic potential, but acne-prone individuals may occasionally react. |
Mild skin irritation | Rare | Occasional transient redness or stinging, typically in sensitive individuals or at higher concentrations. |
Mild stinging or burning on application | Uncommon | Usually transient, more likely on broken or irritated skin. |
Contact urticaria (hives) | Rare | Immediate localized wheal-and-flare reaction in allergic individuals. |
Delayed wound healing with topical use on surgical wounds | Rare | Reported in isolated cases; clinical relevance limited. |
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. |
| 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. |
| 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%. |
| Caprylic/Capric Triglyceride Emollient / skin-conditioning agent | Caprylic/Capric Triglyceride is a lightweight emollient derived from coconut or palm oil and glycerin, used to soften skin, improve spreadability, and act as a solvent for oil-soluble ingredients. It is well-tolerated and serves primarily as a base ingredient rather than an active. |
| Sodium Gluconate Chelating agent / skin-conditioning | Sodium gluconate is the sodium salt of gluconic acid used in skincare primarily as a chelating agent to bind metal ions and stabilize formulations, with secondary humectant and skin-conditioning properties. It is generally considered a base/formulation ingredient rather than an active treatment. |
| Aloe Barbadensis Leaf Extract Soothing/moisturizing agent | Aloe Barbadensis Leaf Extract is derived from the aloe vera plant and is used in skincare for its hydrating, soothing, and mild anti-inflammatory properties. It is commonly included as a supportive base ingredient rather than a primary treatment active. |
| Tetrasodium EDTA Chelating agent | Tetrasodium EDTA is a chelating agent used in skincare formulations to bind metal ions, improving product stability, preserving efficacy, and enhancing the performance of preservatives and surfactants. It is a formulation aid rather than a therapeutic active. |
| Xanthan Gum Thickener/stabilizer | Xanthan gum is a polysaccharide produced by bacterial fermentation, used in skincare as a thickening, gelling, and emulsion-stabilizing agent. It improves product texture and suspension of ingredients without contributing active treatment effects. |
| Phenoxyethanol Preservative | Phenoxyethanol is a widely used broad-spectrum preservative that protects cosmetic and skincare formulations from bacterial and fungal contamination. It is typically used at concentrations up to 1% and serves as a formulation/base ingredient rather than an active treatment. |
| Fragrance Fragrance/masking agent | Fragrance refers to a blend of natural or synthetic aromatic compounds added to skincare products to impart a pleasant scent or mask the odor of other ingredients. It serves a sensory and formulation purpose rather than a therapeutic one. |
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.