GHK-Cu Usage Percentage for Stimulating Hair Growth
Question
How many % of GHK-Cu should be used to stimulate hair growth? Thank you.
Answer
GHK-Cu Concentration for Hair Growth
Based on product information and staff recommendations, the suggested concentration for using GHK-Cu to stimulate hair growth is similar to the concentration used for skin.
- For GHK-Cu solutions (such as 1000ppm or 10000ppm concentrations), the recommended usage rate is typically 1-3%.
- For GHK-Cu powder (purity higher than 98%), the recommended usage rate is typically 0.01% - 1%.
When applying the formulation to the scalp, ensure you use enough product to reach the hair roots effectively.
Additionally, as the staff mentioned, if hair loss is related to an oily scalp, consider incorporating ingredients that help reduce oiliness, such as Zinc PCA or Licorice Extract, into your formulation alongside GHK-Cu.
Updated Review: May 2026
This section was added after reviewing the original answer against current product availability and formulation knowledge at the stated point in time.
2026-05-17 Update
As of May 17, 2026, current formulation guidelines for Copper Peptide (GHK-Cu) emphasize specific stability requirements and updated concentration ranges for hair care applications:
- Updated Usage Rates: For Copper Peptide solutions (1,000ppm or 10,000ppm), the recommended usage remains 1-3%. However, for concentrated Copper Peptide powder, current technical specifications suggest a range of 0.01% to 0.1% for optimal efficacy and stability in scalp tonics and hair-root treatments.
- Stability & pH Compatibility: To maintain the integrity of the peptide, the final formulation should have a pH between 4.5 and 7.4. It is critical to avoid using Disodium EDTA or other strong chelators in the same formula, as these agents can bind with the copper ions and significantly reduce the peptide's effectiveness.
- Enhanced Scalp Support: For those addressing hair loss related to an oily scalp, Zinc PCA (recommended at 0.2-1.0%) is highly effective as it helps inhibit DHT production and control sebum. Licorice Extract (Licochalcone A) remains a key additive for reducing scalp irritation and maintaining a healthy environment for hair growth.
