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If you want the complete chemistry, read our full chemistry deep dive explaining exactly why NAD+ is a coenzyme and not a peptide, with the molecular difference broken down in clear, everyday language

This serum can be applied very lightly around the eye area

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This evidence gap is the single largest limitation of peptide-based approaches

83 One study found these polymorphisms were more common in 167 men with abnormal sperm parameters compared with 78 men with normal sperm

A study in Photodermatology, Photoimmunology & Photomedicine found that oral supplementation with PLE reduced hyperpigmentation by enhancing the skins resilience to UV exposure