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Over time, factors like harsh styling, chemical treatments, or sun exposure can impact not just scalp health but also hair color or texture—making strands appear dull, brittle, or uneven.

In lab studies using cultured human hair follicles, thymulin was shown to support hair shaft elongation and extend the anagen (growth) phase—suggesting its potential to promote healthy hair cycling at the follicular level. Zinc, in this context, helps stabilize thymulin and contributes to scalp health by regulating enzymes associated with hair shedding.

In topical use, GHK-Cu may help even out skin tone and reduce the appearance of dark spots by supporting healthy cell turnover and calming discoloration—benefits that extend to the scalp as well as the face.

• Anagen phase: The active growth phase of the hair cycle, during which hair follicles produce new strands. A prolonged anagen phase is associated with thicker, longer hair.
• Collagen production: A natural process that supports skin and scalp structure. GHK-Cu may promote collagen synthesis, contributing to firmer skin and better follicle support.
• Dark spots: Areas of discoloration that may appear due to sun exposure, aging, or uneven skin tone. GHK-Cu is known for its potential to visibly improve skin appearance and promote a more even complexion.
• DHT (dihydrotestosterone): A hormone derived from testosterone, commonly associated with hair thinning and androgenetic hair loss in both men and women.
• Follicle signaling: The biological communication process between cells in and around the hair follicle that helps coordinate natural growth and cycling patterns.
• GHK-Cu: A copper peptide known for supporting hair and scalp health, collagen production, and visibly improving skin texture and tone.
• Hair cycle support: The use of nutrients or peptides to help maintain natural phases of hair growth, including anagen (growth), catagen (transition), and telogen (resting).
• Hair serum: A lightweight topical product designed to deliver concentrated ingredients directly to the scalp.
• Hair shedding: The natural release of hair strands from follicles, which can increase due to stress, hormone shifts, or poor scalp health.
• Hair thickness: Refers to the density and fullness of hair strands, often improved by strengthening follicles and prolonging the growth phase.
• Scalp environment: The overall condition of the scalp, including hydration, circulation, oil balance, and microbiome—all of which affect hair growth and retention.
• Topical application: Applying a product directly to the skin or scalp, allowing active ingredients to target the area locally without going through the digestive system.
• Vasodilation: The widening of blood vessels, which can increase blood flow to the scalp and support nutrient delivery to hair follicles.
• Zinc thymulin: A peptide-mineral complex used in topical solutions for maintaining hair follicle balance and healthy growth signaling.