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While it shares structural similarities with GHK-CU, the single amino acid difference produces notably different biological effects
No Phase 3 trials were undertaken
OKO Power Powder henna tinting lasts up to 14 days on the skin and up to 1.5 months on the hairs (depending on the individual characteristics of the client's skin) The unique formula, developed with the needs of professionals in mind, allows for streamlining and speeding up work without compromising quality
However, consulting with your healthcare provider is always recommended when introducing new skincare ingredients during these periods
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