Below is every ingredient in Kesar & 2% Kojic Acid Ampoule Serum - 30ml 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%.
Kojic acid is a fungal-derived organic acid that inhibits tyrosinase, reducing melanin production and helping to fade hyperpigmentation, melasma, and dark spots. It is commonly used in topical depigmenting formulations.
Alpha arbutin is a naturally derived hydroquinone derivative that inhibits tyrosinase, reducing melanin production. It is used to address hyperpigmentation, dark spots, and uneven skin tone.
Crocus Sativus (saffron) Flower Extract is a plant-derived ingredient rich in carotenoids (crocin, crocetin) and flavonoids used in skincare for its antioxidant, anti-inflammatory, and brightening properties. It is studied for reducing hyperpigmentation and protecting against UV-induced oxidative stress.
3-O-Ethyl Ascorbic Acid is a stable, water-soluble vitamin C derivative used in skincare for antioxidant protection, brightening, and support of collagen synthesis. It converts to ascorbic acid in the skin and is valued for its greater stability compared to pure L-ascorbic acid.
Allantoin is a naturally derived or synthetically produced compound used in skincare for its soothing, moisturizing, and keratolytic (skin-softening) properties. It promotes cell proliferation and helps calm irritation, commonly appearing in creams, lotions, and after-sun products.
Aggregated from the active ingredients in this product.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation or sensitivity | Very rare | Purified water is essentially inert; reactions are attributable to other formula components, not the water itself. |
| Transient skin barrier disruption from excessive exposure | Rare | Prolonged or repeated wetting can contribute to mild barrier compromise, but this relates to usage patterns rather than the ingredient. |
| 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. |
| Contact dermatitis / skin irritation | Common | Redness, stinging, and itching, especially at higher concentrations or with prolonged use. |
| Skin dryness and peeling | Common | May occur as the skin adjusts, particularly in sensitive skin. |
| Allergic contact sensitization | Uncommon | Kojic acid is a recognized contact allergen and can cause delayed hypersensitivity reactions. |
| Increased photosensitivity | Uncommon | Treated skin may be more reactive to UV; sun protection is advised. |
| Erythema or post-inflammatory hyperpigmentation | Rare | Paradoxical darkening can occur with irritation, more likely in darker skin tones. |
| Systemic effects | Very rare | Topical use is not associated with significant systemic toxicity at cosmetic concentrations. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
| Ingredient | What it does |
|---|---|
| Purified Water Solvent/vehicle | Purified water is a highly filtered, deionized water used as the primary solvent and base in most skincare formulations. It dissolves water-soluble ingredients and provides the medium in which other components are dispersed. |
| 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%. |
| Kojic Acid Key active Skin-brightening agent (tyrosinase inhibitor) | Kojic acid is a fungal-derived organic acid that inhibits tyrosinase, reducing melanin production and helping to fade hyperpigmentation, melasma, and dark spots. It is commonly used in topical depigmenting formulations. |
| Alpha Arbutin Key active Skin-brightening agent | Alpha arbutin is a naturally derived hydroquinone derivative that inhibits tyrosinase, reducing melanin production. It is used to address hyperpigmentation, dark spots, and uneven skin tone. |
| 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. |
| Sodium Levulinate Preservative / humectant | Sodium Levulinate is the sodium salt of levulinic acid, derived from natural sugars, used primarily as a mild preservative and antimicrobial agent that also provides moisturizing properties. It is often paired with sodium anisate in natural-leaning preservative systems. |
| Potassium Sorbate Preservative | Potassium sorbate is the potassium salt of sorbic acid, used as a mild preservative to inhibit mold, yeast, and some bacterial growth in cosmetic formulations. It is most effective at acidic pH and is often combined with other preservatives for broad-spectrum protection. |
| Crocus Sativus Flower Extract Key active Antioxidant/skin-brightening botanical | Crocus Sativus (saffron) Flower Extract is a plant-derived ingredient rich in carotenoids (crocin, crocetin) and flavonoids used in skincare for its antioxidant, anti-inflammatory, and brightening properties. It is studied for reducing hyperpigmentation and protecting against UV-induced oxidative stress. |
| Ethyl Ascorbic Acid Key active Antioxidant / Vitamin C derivative | 3-O-Ethyl Ascorbic Acid is a stable, water-soluble vitamin C derivative used in skincare for antioxidant protection, brightening, and support of collagen synthesis. It converts to ascorbic acid in the skin and is valued for its greater stability compared to pure L-ascorbic acid. |
| Betaine Humectant / osmolyte | Betaine is a naturally derived amino acid derivative (trimethylglycine) used in skincare as a humectant and osmoprotectant that attracts and retains moisture while helping stabilize skin barrier function. It also improves the texture and mildness of formulations. |
| Allantoin Key active Soothing/skin-conditioning agent | Allantoin is a naturally derived or synthetically produced compound used in skincare for its soothing, moisturizing, and keratolytic (skin-softening) properties. It promotes cell proliferation and helps calm irritation, commonly appearing in creams, lotions, and after-sun products. |
| 4-Butylresorcinol Key active Skin-brightening agent (tyrosinase inhibitor) | 4-Butylresorcinol is a resorcinol-derivative used in topical formulations to inhibit tyrosinase and reduce melanin production, helping to fade hyperpigmentation and even skin tone. It is generally considered one of the more potent skin-lightening actives among resorcinol derivatives. |
| Dimethyl Isosorbide Solvent / penetration enhancer | Dimethyl Isosorbide (DMI) is a small, polar solvent derived from isosorbide used in cosmetic formulations to dissolve active ingredients and enhance their penetration into the skin. It functions as a vehicle and carrier rather than a therapeutic active itself. |
| Ethoxydiglycol Solvent / penetration enhancer | Ethoxydiglycol (diethylene glycol monoethyl ether) is a glycol ether used in cosmetic formulations primarily as a solvent and viscosity reducer that helps dissolve active ingredients and improve their skin penetration. It is considered a formulation aid rather than a therapeutic active. |
| 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. |
| Sodium Hyaluronate Humectant / hydrator | Sodium hyaluronate is the sodium salt of hyaluronic acid, a glycosaminoglycan that attracts and binds water to the skin to improve hydration and surface plumpness. Its lower molecular weight allows better penetration than native hyaluronic acid. |
| 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. |
| Di Sodium EDTA Chelating agent | Disodium EDTA is a chelating agent added to skincare formulations to bind metal ions, improving product stability, preservative efficacy, and preventing discoloration or rancidity. It is used in low concentrations as a formulation aid rather than a treatment active. |
| Citric Acid pH adjuster / AHA exfoliant | Citric acid is an alpha-hydroxy acid derived from citrus fruits, used primarily to adjust and buffer formulation pH and as a chelating agent, and at higher concentrations as a mild chemical exfoliant. It can promote surface cell turnover and is sometimes included in antioxidant or brightening products. |
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.