Condition
Hair Health
Hair health reflects how well the follicles in your scalp grow strands that are strong, thick and anchored, a process shaped by hormones, nutrition and the natural cycle of hair growth and rest. Among supplements, GHK-Cu and vitamin B5 have the most reviewed research, and small studies found hair growth went up with GHK-Cu and hair strength went up with vitamin B5. The evidence for both is limited, since the trials were small, so firm conclusions aren't possible yet.
Sources: PMID 29986520; PMID 18644225
- Updated
- How we grade
- 3 studies cited
- Supplements studied
- 1
- Medicines and peptides
- 1
- Graded outcomes
- 2
Evidence by supplement
- Strong
- Moderate
- Limited
- Very limited
| Grade | Outcome | Effect | Size | Studies | People | Studies list |
|---|---|---|---|---|---|---|
| Hair Strength Small Increase | Improves (the measure goes up) | Small effect | 150 people |
Prescription medicines and peptides studied, for context
GHK-Cu
- Hair Growth: improves
| Grade | Outcome | Effect | Size | Studies | People | Studies list |
|---|---|---|---|---|---|---|
| Hair Growth Small Increase | Improves (the measure goes up) | Small effect | 3 studies | 95 people |
Key findings
- Hair StrengthImproves (the measure goes up)
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Studies cited
3 studies from PubMed