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GHK-Cu Topical vs TB-4 Topical (Hair)

A side-by-side research comparison of GHK-Cu Topical and TB-4 Topical (Hair) across mechanism, dosing, half-life, benefits, side effects and research status.

Comparison table

AttributeGHK-Cu TopicalTB-4 Topical (Hair)
Full nameGHK-Cu Copper Peptide (Topical/Scalp)Thymosin Beta-4 Topical (Hair Growth)
CategoryHair GrowthHair Growth
StatusCosmetic / Research compoundResearch compound
MechanismActivates genes for hair growth including VEGF, FGF, and nerve growth factor at the follicular level. Stimulates dermal papilla cell proliferation. Extends anagen phase via Wnt/β-catenin pathway activation. Delivers copper for lysyl oxidase (collagen cross-linking).Promotes migration and differentiation of hair follicle stem cells via actin sequestration and cell motility enhancement. Activates quiescent stem cells in the bulge niche. Stimulates new blood vessel formation around follicles for nutrient delivery.
Molecular weight403.92 Da (with Cu)4921 Da
Half-life~2-4 hours (topical depot at scalp)~6 hours (systemic); local depot effect (topical)
BioavailabilityTopical penetration to dermal papillaTopical: penetrates to bulge region with microneedling
Typical dose1-2 mg/mL in scalp solution or serum50-200 mcg per scalp application or 0.1% solution
FrequencyDaily application3x weekly
RouteTopical scalp serum or mesotherapy injectionTopical serum or mesotherapy (intradermal injection)

GHK-Cu Topical reported benefits

  • Follicle stem cell activation
  • Increased hair follicle size
  • Scalp angiogenesis
  • Collagen remodeling in scalp
  • Compatible with all other treatments
  • Anti-inflammatory for scalp

TB-4 Topical (Hair) reported benefits

  • Hair follicle stem cell activation
  • Dormant follicle reactivation
  • Scalp angiogenesis
  • Anti-inflammatory for scalp
  • Synergistic with microneedling
  • Novel mechanism (stem cell migration)

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Research and educational reference only. Not medical advice.