나이아신아마이드 vs 비타민C 피부미백 효능 한번에 정리➡️ 피부과의사 추천 농도&조합 제대로 알고 사용하세요💡

💡 Are 2% and 10% Niacinamide really the same ingredient? In this video, a dermatologist explains: ✔ Differences in Niacinamide by Concentration ✔ Effects and Precautions by Vitamin C Concentration ✔ Why Tranexamic Acid Helps with Melasma ✔ The Correct Way to Use It with Retinol ✔ Ingredient Selection Guide by Skin Type We will summarize all of this in one go. What is more important than the ingredient name is the ‘concentration’ and ‘your skin type.’ If you have had trouble choosing cosmetics due to melasma, blemishes, enlarged pores, or skin tone, be sure to watch until the end! [Timeline for Busy People] 0:00 Preview 0:19 The Truth About Niacinamide Concentrations? 2:16 The Truth About Vitamin C Concentrations? 3:55 Vitamin C Product Recommendations💡 5:18 Can I Use Niacinamide + Vitamin C Together? 6:32 Can I Use Vitamin C Cosmetics in the Morning? 6:51 Worried about melasma pigmentation? (Tranexamic Acid) 7:57 Selection Guide by Skin Type 8:41 Today's 4 Key Points ☑️ #SkinWhitening #WhiteningCosmetics #WhiteningCare #Niacinamide #VitaminC #Retinol #MelasmaCream #MelasmaCare