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GHK-Cu Serum $16.99

For our list of the best tightening body lotions, we considered each product's performance across five primary categories: product ingredients and efficacy, packaging, fragrance, texture, and product wear

Synthetic tetrapeptide: Ala-Glu-Asp-Gly High-purity research material Lyophilized for stability and precise laboratory handling Suitable for in-vitro and analytical research applications Manufactured and tested under strict quality standards Epithalon is a synthetic tetrapeptide supplied in lyophilised (freeze-dried) powder form for laboratory research purposes

[DOI] [PMC free article] [PubMed] [Google Scholar] 108.Wyss M., Kaddurah-Daouk R

The formula is fragrance-free and non-comedogenic, and the brand confirms it has been tested for low irritation on sensitive skin