รบกวนขอ Paper ค่ะ

รบกวนขอ paper ด้วยนะคะ

1. Food for Skin Health: Collagen Peptides
https://www.sciencedirect.com/science/article/pii/B9780081005965217332

2. Daily oral supplementation with collagen peptides combined with vitamins and other bioactive compounds improves skin elasticity and has a beneficial effect on joint and general wellbeing
https://www.sciencedirect.com/science/article/pii/S0271531717311508

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