Firming Serum Supreme

A brightening active particularly effective on stubborn pigmentation.

The stable ester form of vitamin E that converts to active tocopherol in skin; a common, shelf-stable antioxidant.

A hydrolysate of conchiolin, the structural protein from pearl/nacre (Pinctada spp.). Used in luxury Japanese skincare for its moisturising, conditioning, and film-forming properties.

A silk-derived protein extract that hydrates and imparts a smooth, conditioned feel.

An amino acid found naturally in green tea leaves that calms skin sensitivity and reduces inflammatory responses. Used in d program and other Japanese formulations targeting reactive or allergy-prone skin.

An acetylated form of sodium hyaluronate with enhanced surface-binding properties that provides long-lasting, film-forming hydration.

A naturally occurring cyclohexane polyol (commonly myo-inositol) found in cell membranes, used in cosmetics as a humectant and skin-conditioning agent.

Extract from Psychotria leiocarpa, a plant native to the Amazon. Contains high levels of piceid, a natural precursor and glycoside of resveratrol. Used in luxury skincare (notably Clé de Peau Beauté) for its antioxidant and skin-brightening benefits.

Job's Tears (hatomugi) seed extract, a staple J-beauty botanical valued for calming, hydrating and mild brightening effects on dull or rough skin.

Hydrolyzed elastin proteins derived from marine sources (typically fish). Marine elastin forms a conditioning film on skin that temporarily improves its elasticity and suppleness. Used in anti-aging serums.

A non-proteinogenic amino acid and key component of collagen used in cosmetics as a humectant; its presence in the NMF supports hydration and signals collagen stabilization.

The simplest amino acid, used as a humectant that supports the skin's natural moisturizing factor.

A gold-standard humectant that draws water into the skin.

A sugar-based humectant that holds water and helps skin resist dehydration stress.

A gentle humectant derived from sugar beets.

The salt form of hyaluronic acid; penetrates more readily.

A general term for extract derived from citrus fruit peel (orange, lemon, grapefruit, lime, etc.). Contains flavonoids, vitamin C precursors, and antioxidants. Standardized peel extracts typically have phototoxic compounds removed.

An extract from cornflower (Centaurea cyanus) blooms, rich in anthocyanins, apigenin, and quercetin. Used in cosmetics for gentle soothing, anti-inflammatory, and antioxidant properties. Common in eye-area and sensitive skin products.

An extract from hawthorn (Crataegus monogyna) flowers rich in flavonoids and polyphenols, used in cosmetics for antioxidant and soothing properties.

An extract derived from sardines (Sardina pilchardus), rich in omega-3 fatty acids, amino acids, and peptides. Used in luxury Japanese skincare for its skin-nourishing and antioxidant properties.

A polyphenol-rich antioxidant that also calms skin.

An aqueous or hydroglycolic extract of common thyme (Thymus vulgaris) herb, distinct from thyme essential oil. Used for antioxidant, soothing, and mild antimicrobial properties. Less irritating than the essential oil.

Extract from fennel (Foeniculum vulgare), rich in anethole, flavonoids, and phenolic compounds. Used for its soothing, antioxidant, and skin-conditioning properties.

An extract from Uncaria gambir (gambir plant) prepared by boiling the leaves and twigs. Rich in catechins and tannins; used in cosmetics for antioxidant, soothing, and astringent properties in prestige skincare.

An extract from the root of Potentilla erecta (tormentil), rich in ellagitannins, catechins, and flavonoids. Provides antioxidant, soothing, and astringent benefits for sensitive skin care.

A mineral UV filter effective against UVB and short UVA.