What are the risks of using hyaluronic acid or collagen serum topically on one's face?

Kleem Organic Vitamin C Serum for Face + Hyaluronic Acid. Potent Anti-Aging serum, Anti-Wrinkle Treatment, Skin Tightening, Dark Spot Removal and Collagen Stimulation. Cruelty Free : Beauty

Asked Nov 08, 2015

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