Scalp Serum

The base most products are built on. It carries the other ingredients and has no safety concern.

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

Tea tree oil is used for its antimicrobial reputation in blemish-focused products, but it is a genuine, well-documented contact sensitizer, and its allergy potential rises sharply once the oil has oxidized from air exposure. Fresh, well-preserved, low-concentration formulations are much lower risk than old or improperly stored oil.

A signal peptide designed to inhibit neurotransmitter release and reduce facial muscle tension, marketed as a gentler alternative to botulinum toxin. Cosmetic-grade formulations show no significant systemic absorption at recommended levels and are well tolerated in product use.

A small peptide bonded to copper that supports collagen remodeling and skin repair. Studied in cosmetics and dermatology for decades with a strong safety record at cosmetic-use levels.

A natural alkaloid and studied active ingredient in skincare, valued for its antioxidant properties and potential to promote local circulation and reduce puffiness. Topical application results in minimal systemic absorption, graded low concern in regulatory assessments.

Sodium PCA is a natural component of skin's own moisturizing factor and is used in cosmetics as a humectant to help skin hold onto water. It has an extensive history of safe use with no meaningful irritation or sensitization signal.

The sodium salt of lactic acid and a key component of the skin barrier and natural moisturizing factor that attracts water to the skin. It is well established as a safe and effective humectant with no known hazards at cosmetic concentrations.

A basic amino acid naturally found in skin that draws moisture into the stratum corneum. It is well tolerated in cosmetics at typical concentrations and has been used safely in skincare formulations for decades.

A humectant that holds water at the skin surface for a more hydrated look. No safety concern.

A triterpenoid from Centella asiatica with published research linking it to skin barrier function and calming effects. It appears well tolerated at cosmetic levels.

The simplest amino acid, naturally present in skin and collagen, commonly used as a humectant to help retain moisture. It has a long history of safe use in cosmetics with no known hazards at typical concentrations.

A non-essential amino acid that occurs naturally in skin and is used in cosmetics as a humectant and skin-conditioning agent. It has an established safety record with no reported concerns at typical usage levels.

A naturally occurring amino acid that is a key component of skin barrier lipids and the natural moisturizing factor. It binds water to the skin and is well established as a safe hydrating ingredient with no known sensitization concerns.

An antioxidant that helps protect a formula and condition skin. Well tolerated.

An amino acid abundant in collagen that functions as a humectant to draw moisture into the skin. It is well tolerated in skincare products and assessed as safe for cosmetic use at standard formulation levels.

An essential amino acid that is a component of the skin barrier and natural moisturizing factor, used in cosmetics to improve hydration. It is well tolerated and assessed as safe for topical application.

Green tea extract is a well-studied topical antioxidant with a long history of use in serums and moisturizers, generally well tolerated at cosmetic concentrations. Panel safety reviews of Camellia sinensis-derived ingredients have not identified meaningful topical hazard.

The most well-studied form of topical vitamin C, used as an antioxidant and to support collagen signaling and brighten uneven tone. It is acidic and can sting or irritate sensitive skin, and it oxidizes readily once a bottle is opened, which can reduce its effectiveness rather than create a safety issue.

A glycerin derivative used as a skin conditioner and preservative booster, often paired with phenoxyethanol to allow lower total preservative levels. It has a low irritation and sensitization profile in safety reviews.