Dipeptide-4 Quick Overview Synonyms/Alias:Phenylalanyltryptophan; L-PHENYLALANYL-L-TRYPTOPHAN;Dipeptide-4 CAS No. :24587-41-5 Purity: ≥98% Storage Temp: 2 ~ 8°C Package size: 1g/bottle, 10g/bottle, 50g or customer requirement Product Description Tags Reviews Dipeptide-4 protects the skin from environmental stress and skin glycosylation, thus it helps maintain skin health and elasticity. Add Tags: Add Tags Use spaces to separate tags. Use single quotes (') for phrases. Reviews Write Your Own Review Nickname* Summary* Review* Submit Review