2018年5月28日 · Vitamin C and Tretinoin are the best anti aging topicals that are currently available on the market. They are very effective for anti aging.Retinoic Acid is very strong and it can cause the skin to peel or be red.

2013年2月6日 · “Yes, it is safe to use Retin-A and vitamin C products at the same time,” says Prospect, KY, dermatologist Tami Cassis, MD. Dr. Cassis says there are no real contradictions with vitamin C and ...

2023年10月12日 · “The stability of vitamin C in solution has been a concern, because exposure to air, heat and light may slowly degrade the vitamin,” explains Dr. King. “The stability [of vitamin C] may be increased by adding other antioxidants (like ferulic acid ), so look for ascorbic acid, combined with other antioxidants, and packaging that protects ...

2023年10月11日 · This potent form of vitamin A can be prescribed by your doctor or dermatologist as a cream, gel, or liquid, in dosage strengths ranging from 0.01% to 0.25% tretinoin. “I recommend lifetime use of tretinoin to almost all of my cosmetic patients, as it is the best at-home resurfacing product,” says Dr. Jennifer Reichel , a board-certified ...

2019年3月10日 · Vitamin C should be applied in the morning before your moisturizer and sunscreen. You can apply Retin-A at night after washing your face. Retin-A can be irritating for certain patients, so I usually tell patients to use a pea-size amount for the face and start applying every other day until daily use is tolerated.

2010年9月6日 · However, the topical vitamin C product should be applied at least 30 minutes before or after the Retin A. Also, the vitamin C product when used in combination with Retin A may cause irritation and thus would suggest this protocol only after a dermatologist reviews with you. The topical vitamin C product should be approved first by your ...

2024年8月29日 · I follow with SkinCeuticals Retinol 1.0 or a prescription retinoid—these vitamin A derivatives are the ultimate multitasker. They help build collagen , correct fine lines and wrinkles, improve ...

2021年4月8日 · Vitamin C + Various Ingredients. In addition to the AHAs and salicylic acid, Dr. Mraz Robinson says stay away from applying retinol and topical vitamin C at the same time, as the combination will ...

2020年10月23日 · Retinoids (Retinol, Tretinoin, Adapalene, or Tazarotene) Vitamin C Arbutin Niacinamide Cysteamine Licorice Root Extract: ... First and foremost, I suggest using a product with vitamin C. Then spot ...

2018年6月26日 · You would want to use a Vitamin C in the morning underneath the Aczone. Make sure you are using an L-ascorbic acid form of Vitamin C. iS Clinical Pro-heal is a great choice. After you put it on, let it sit on the skin for about 5 min before applying the Aczone.