The 6 Peptide Skin Booster Serum

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

A versatile vitamin B3 derivative with multiple benefits.

A peptide marketed to relax expression lines.

A signaling peptide that supports skin repair and firmness.

A recombinant (biotech-derived) polypeptide modelled on silk growth factors, used in advanced peptide serums to support skin renewal and collagen synthesis.

A synthetic dipeptide that acts as a reversible antagonist at muscular nicotinic acetylcholine receptors, reducing repetitive facial muscle contractions to smooth expression lines.

A synthetic oligopeptide that targets tyrosinase — the key enzyme in melanin production — making it a precision brightening active suited for dark spots and uneven tone.

A palmitoylated synthetic tripeptide that mimics the anti-inflammatory signaling domain of alpha-melanocyte-stimulating hormone (α-MSH). Activates melanocortin MC-1R receptors on keratinocytes and immune cells, triggering the same anti-inflammatory cascade as the endogenous neuropeptide. Used in Dr. Jart+ Cicapair formulas and other K-beauty calming products for its potent yet gentle anti-inflammatory and sensitivity-reducing properties.

A gentle soothing and skin-conditioning agent.

The salt form of hyaluronic acid; penetrates more readily.

An amino-sugar (a hyaluronic acid building block) that helps fade uneven pigmentation and supports skin hydration. Pairs well with niacinamide for tone.

A naturally occurring amino acid that functions as a humectant and is a component of the skin's natural moisturizing factor.

A naturally occurring amino acid used as a humectant that helps maintain skin hydration and supports the NMF.

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

An essential amino acid used as a humectant that contributes to the skin's natural moisturizing factor.

A naturally occurring amino acid that acts as a humectant and supports the skin's own moisture-retention system.

A cyclic amino acid that functions as a humectant and forms part of the skin's natural moisturizing factor.

A gentle humectant derived from sugar beets.

A component of the skin's natural moisturizing factor (NMF).

The sodium salt of lactic acid, a natural component of the skin's NMF used as a humectant and mild pH buffer in moisturizers and toners.

A component of the skin's natural moisturizing factor (NMF).

A naturally occurring amino acid that functions as a humectant and contributes to the skin's natural moisturizing factor.

The hydrochloride salt of the essential amino acid lysine, used in cosmetics as a humectant and skin-conditioning agent that also supports collagen production.

Vitamin E; a lipid-soluble antioxidant that also conditions skin.

A branched polysaccharide of α-D-glucose units primarily linked α(1→6), produced by fermentation of Leuconostoc mesenteroides. Distinct from dextrin (a partially hydrolyzed starch). In cosmetics, dextran forms a hydrophilic film on skin surfaces, providing temporary plumping, hydration retention, and a silky skin feel. Used in premium serums and masks for its biopolymer moisturizing and film-forming properties.

A nucleoside used at low concentrations to help smooth the look of fine lines; a common K-beauty anti-aging active.

An AHA most often used in small amounts to adjust pH.