Can You Still Tan While Wearing Sunscreen? | Dermatologist Q&A

In this skincare Q&A, dermatologist Dr. Dray answers questions from viewers about tanning through sunscreen, skin barrier repair, micellar water, vascular redness, hyaluronic acid, glycerin, tanning through sunscreen, purpura, topical zinc, and topical metformin. Dr. Dray discusses why hemosiderin can appear in the lower legs, whether micellar water can cause cancer, and whether sunscreen should be avoided when the skin barrier is damaged. She also explains whether micellar water can replace cleansing oil in a double cleanse and discusses treatment options for persistent facial redness and dilated blood vessels. The video also addresses the common misconception that hyaluronic acid and glycerin are harmful in hot, dry climates, explaining why these humectants do not simply pull moisture out of the skin or hair. Additional questions cover Valsalva purpura from forceful coughing or vomiting, tanning despite sunscreen, topical zinc, oral zinc for acne and hidradenitis suppurativa, and the emerging research on topical metformin. Topics covered: 0:00 Intro 0:11 Why Did the Hemosiderin "Leak Out"? 1:43 Can Micellar Water Cause Cancer? 2:24 Should You Stop Sunscreen While Repairing Your Skin Barrier? 3:04 Can Micellar Water Replace Cleansing Oil? 4:08 Best Treatments for Vascular Redness 4:54 Is Hyaluronic Acid Bad in a Dry Climate? 8:58 Burst Blood Vessels Under the Eyes From Coughing 10:52 Can You Tan Through Sunscreen? 12:34 Topical Zinc & Topical Metformin 13:45 Outro Dr.