Vitamin C serum tests like the Betadine experiment only prove the presence of antioxidants—not their effectiveness on your skin. Most serums use L-Ascorbic Acid, which oxidizes quickly and can irritate sensitive skin.
PHD’s 10% Vitamin C Brightening Serum uses 3-O-Ethyl Ascorbic Acid—a stable, gentle, and clinically proven derivative that delivers brightening results without irritation. So before you trust what works in a beaker, choose what works on your skin.
✅ Stable & non-irritating
✅ Dermatologist-formulated
✅ Fades dark spots & brightens skin tone
#vitamincserum #skincarefacts #phdskincare
You have probably seen this test. Add vitamin C to betadine and it turns clear showing the efficacy of vitamin C. But here’s what it actually means. This test just shows the presence of an antioxidant. It doesn’t tell you how safe, effective, or stable that antioxidant is on your skin. Some vitamin C serums pass this test but still oxidize fast, sting, or even irritate your skin because most use aloscorbic acid which is strong but not stable and harsh. PHD 10% vitamin C brightening serum uses a stable vitamin C derivative which is 30oethylcorbic acid which is stable and clinically proven to show results without irritation. So, yes, this test proves there’s vitamin C, but what you really want is vitamin C that works on your skin, not just in a beaker.
