- Is this serum for morning or night use?
- It is designed as a daytime serum. Apply it in the morning before moisturizer and sunscreen, since vitamin C works well alongside daily sun protection.
- Will it suit sensitive skin?
- The formula is aimed at normal skin, and some users report tingling. If your skin reacts easily, patch test first and start with less frequent use.
- How does it compare with other vitamin C serums?
- It uses a stabilized vitamin C approach and a light texture, similar in concept to other premium antioxidant serums. Cheaper options exist, but many lack the same cosmetic feel.
- How long until I see results?
- Most vitamin C serums need several weeks of consistent use before brightening shows. Expect gradual change rather than an overnight effect.
- Can I use it with retinol or exfoliating acids?
- Many routines combine vitamin C in the morning with retinol at night. If you use strong acids, alternate or space them out to avoid irritation.
- What size is the bottle?
- It is a 0.5 oz bottle, sized for daily use over a few weeks to a couple of months depending on how much you apply.
- Where is the Alastin C-Radical Defense Antioxidant Serum cheapest?
- At eBay, for $25.99, as of our latest check.
- Where can I buy the Alastin C-Radical Defense Antioxidant Serum?
- 2 stores we checked sell it, including Groupon, eBay.