Both are vitamin A — but one works faster. Here is how to choose, and how to start without the sting.
One step closer
Retinal sits one conversion step closer to retinoic acid than retinol, so it works faster at lower strengths.
How to start
Begin twice a week at night, on dry skin, and buffer with moisturiser if you are sensitive.
Key takeaways
Retinal works faster than retinol
Start twice a week
Always wear SPF