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It is possible that compensatory mechanisms could develop that reduce efficacy with prolonged use
How GHK-Cu changes as we age Naturally occurring GHK-Cu levels might decline with age, meaning your hair and scalp may not get the same level of biological support over time
Bhalla, A., Bhargava, A., & Bhalla, K
If you enter 20mg as 20mcg, all subsequent calculations will be wildly inaccurate
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