Brow & Lash Architecture Serum

The base solvent that dissolves the humectants, peptides and water-soluble botanical extracts and carries them evenly along the brows and lash line.

Established cosmetic-science consensus; water is the standard vehicle for a leave-on aqueous serum.

Draws and holds water at the brow and lash surface so the dried film stays hydrated and comfortable through once-daily wear.

One of the most studied humectants in cosmetic science; its benefit is surface hydration of the hair and skin.

A lightweight humectant and co-solvent that improves the solubility of the peptides and preservative and adds slip so the serum spreads thinly.

Established cosmetic-science consensus as a widely used glycol humectant and solvent with a favourable tolerance profile.

A humectant and extraction solvent that helps hold the botanical extracts and peptide actives stably in solution.

Established cosmetic-science consensus as a common extraction solvent and humectant in botanical serums.

Conditions the brow and lash fibre, improving surface smoothness and moisture retention so the hairs look and feel softer and more flexible.

Established cosmetic-science consensus for panthenol as a humectant and conditioning agent on hair and skin; the benefit is cosmetic conditioning of the fibre.

A supporting peptide active, included to condition the brow and lash line and support the appearance of denser, fuller-looking hairs alongside the lead density peptide.

Manufacturer/supplier data (used in the Procapil complex) reports conditioning benefits; independent peer-reviewed evidence specific to brows and lashes is limited.

A supporting length-appearance peptide in this dual-use formula, chosen to condition brows and lashes for a more defined look over continued daily use.

Manufacturer/supplier clinical data (marketed as a lash peptide, e.g. Sympeptide XLash) reports improvement in the appearance of lashes; independent peer-reviewed evidence is limited.

The lead density-architecture peptide in this serum, paired with red clover extract to support the appearance of thicker, denser brow and lash hairs.

Manufacturer/supplier data (the Capixyl complex) reports improvement in hair-density measures in scalp studies; brow- and lash-specific independent peer-reviewed evidence is limited.

The polysaccharide carrier that delivers and stabilises the peptide actives (notably the Capixyl-style complex) and leaves a light conditioning film.

Established cosmetic-science consensus; dextran is a common stabilising carrier for peptide actives.

The botanical partner to acetyl tetrapeptide-3 in the Capixyl-style complex, included to support the appearance of denser brows and lashes.

Manufacturer/supplier data (Capixyl, red clover standardised for biochanin A) underpins the density-appearance positioning; independent peer-reviewed brow/lash evidence is limited.

A green-tea polyphenol extract acting as an antioxidant within the botanical-bioactive (Redensyl-style) complex, helping protect the delicate hairs and the formula from oxidative stress.

Established cosmetic-science consensus for green tea polyphenols (EGCG) as topical antioxidants; the density positioning rests on manufacturer complex data, not independent lash studies.

The larch-derived component of the Redensyl-style botanical complex, included to support the appearance of fuller brow and lash density.

Manufacturer/supplier data (Redensyl uses a larch-derived dihydroquercetin glucoside) supports the positioning; independent peer-reviewed evidence in brows and lashes is limited.

An amino acid included as a listed component of the Redensyl-style complex and to add to the conditioning, buffered feel of the serum.

Established cosmetic-science consensus; glycine is a standard amino-acid conditioning and buffering ingredient and a defined part of the Redensyl complex.

The zinc component of the Redensyl-style complex, present at a trace level to complete the defined botanical-bioactive system.

Manufacturer/supplier data lists zinc chloride as a defined part of the Redensyl complex; standalone independent evidence for brow and lash use is limited.

A rosemary botanical included for its antioxidant polyphenols, rounding out the botanical-bioactive complex and helping keep the serum stable.

Rosemary extract has some peer-reviewed interest in hair care, but robust brow- and lash-specific evidence is limited; here it functions primarily as an antioxidant botanical (cosmetic-science consensus).

A high-water-binding humectant that hydrates the brow and lash line and helps the thin film feel smooth rather than tight.

Well-established cosmetic-science consensus as a surface humectant and hydrator; its benefit is surface hydration.

Included at a low level as a conditioning vitamin that ties the serum into the wider peptide range and supports a well-conditioned brow and lash surface.

Peer-reviewed evidence that topical or supplemental biotin changes hair in people without a deficiency is limited (Patel 2017 review); it is included here as a conditioning vitamin.

An antioxidant added to protect the peptides and botanical polyphenols from oxidation so the serum stays consistent in performance and colour.

Established cosmetic-science consensus; a standard antioxidant/reducing agent used to stabilise oxidation-sensitive botanical formulas.

Forms a light, flexible film that helps the serum sit evenly on brows and the lash line and gives a smooth, lightly tightened finish as it dries.

Established cosmetic-science consensus for pullulan as a natural film-forming polysaccharide; the effect is a cosmetic surface film.

Thickens the water phase to a light gel so the serum stays on the brush and along the lash line without running into the eye.

Established cosmetic-science consensus as a common non-ionic gelling and thickening polymer.

Part of the citrate buffer that holds the serum at a mild, eye-area-appropriate pH so the peptides stay stable.

Established cosmetic-science consensus; sodium citrate is a standard buffering salt.

The acid partner of the citrate buffer, fine-tuning pH to a skin- and eye-friendly range.

Established cosmetic-science consensus as a standard pH adjuster.

The primary preservative protecting this water-based, eye-area serum from microbial contamination across its in-use life.

Established cosmetic-science consensus; a broad-spectrum preservative permitted up to 1% and widely used in eye-area products.

A preservative booster that supports phenoxyethanol and adds a mild conditioning slip.

Established cosmetic-science consensus as a preservation booster and skin-conditioning agent.