reference

Reference 1: Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis

Reference 2: Effects of marine collagen peptide on delaying the skin aging

Reference 3: Dietary supplementation of gamma-linolenic acid improves skin parameters in subjects with dry skin and mild atopic dermatitis

Reference 4: Effect of Evening Primrose Oil on Postmenopausal Psychological Symptoms: A Triple-Blind Randomized Clinical Trial

Reference 5: Grape seed extract: having a potential health benefits

Reference 6: The effects of green tea on acne vulgaris: A systematic review and meta-analysis of randomized clinical trials

Reference 7: Hesperidin Is a Potential Inhibitor against SARS-CoV-2 Infection

Reference 8: French Maritime Pine Bark Extract (Pycnogenol®) Effects on Human Skin: Clinical and Molecular Evidence

Reference 9: Evaluation of psoriasis severity and inflammatory responses under concomitant treatment with methotrexate plus

Reference 10: World’s first clinical trial shows that micro-nutrient beauty supplement can help prevent the ageing effects of winter on the skin