Q1: Can beginners use this product?
A: Yes, but it's recommended to start with 2-3 times per week to allow the skin to adjust.

Q2: Is it safe during pregnancy or breastfeeding?
A: Retinoids, including retinal, are not recommended during pregnancy or breastfeeding. Please consult with a doctor.

Q3: Can I use it with other actives like Vitamin C or AHA/BHA?
A: Avoid using it in the same routine with Vitamin C or exfoliating acids to minimize irritation. Alternate on different nights if needed.

Q4: Does this cause purging?
A: Some users may experience purging initially as retinal accelerates skin turnover. This usually subsides within a few weeks.

Q5: Can I layer it under makeup?
A: It's best used at night and not under makeup. Always use sunscreen the next morning.