Summary

Retinoids are ingredients used in anti-aging products and acne treatments. They can be used topically in creams such as Retin-A or Differin as well as orally in medication such as Accutane. There are different types and strengths of retinoids:

Type Strength Prescription
Adapelene (Differin) Very strong Required
Tazarotene Very strong Required (excluding Greece, Poland, Spain)
Tretinoin (Retin-A) Strong Required (excluding Greece, Poland, Romania)
Retinaldehyde (retinal) Medium Available in over-the-counter products
Retinol (vitamin A) Normal Available in over-the-counter products

More frequently asked questions about retinoids ↗