GHK-Cu / thymulin / PTD-DBM stack: what's in it

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By Ellum EditorialUpdated October 12, 2026AI use

The short answer

GHK-Cu / thymulin / PTD-DBM stack combines GHK-Cu, Thymulin and PTD-DBM.

What it is
Topical hair stack.
What people look into
Skin and hair, aging
Results for one compound don't tell you what the three do together.

The parts

GHK-Cu (topical cosmetic) Index
Cosmetic
Thymulin Index
Not FDA-approved
PTD-DBM (topical hair peptide) Index
Not FDA-approved
WADA 2026: Not named; S0 (non-approved substances) applies if no health authority approves it for human use

Regulatory status by component

Not FDA-approved How we label status

As of October 4, 2026, GHK-Cu (topical cosmetic) is sold in the US as a cosmetic. See GHK-Cu (topical cosmetic) in the Index →
As of October 4, 2026, Thymulin is not FDA-approved for any use and is not on FDA's 503A bulks list. See Thymulin in the Index →
As of October 4, 2026, PTD-DBM (topical hair peptide) is not FDA-approved for any use and is not on FDA's 503A bulks list. See PTD-DBM (topical hair peptide) in the Index →

Status as of October 4, 2026

As a combination: No category as a combination (see components)

GHK-Cu (topical cosmetic): as of October 4, 2026 · source
Thymulin: as of October 4, 2026 · source
PTD-DBM (topical hair peptide): as of October 4, 2026 · source

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The research on GHK-Cu / thymulin / PTD-DBM stack

Key facts

Also known as: hair growth peptide stack, hair peptide stack

Parts: GHK-Cu (topical cosmetic), Thymulin and PTD-DBM (topical hair peptide)
Route: injectable;topical