Retinoid ·
Retinol
What is it?
Retinol is a vitamin A derivative widely used in over-the-counter anti-aging products. It is progressively converted by skin enzymes into retinoic acid, the biologically active form that binds retinoic acid receptors to influence collagen production and skin cell turnover.
What does it do?
Commonly used to help address visible signs of photoaging (fine lines, uneven texture, dullness) by promoting skin cell turnover and supporting collagen synthesis.
Who may benefit?
- May worsen: Acne & Congestion
- May help with: Texture & Scarring
- May help with: Fine Lines & Aging
How to use
Typically formulated at 0.01%-1% in most OTC formulations.
Ingredients it works with
- Hyaluronic Acid — Compatible
Hyaluronic acid is commonly paired with a retinoid specifically to offset the dryness retinoids can cause — there is no known conflict between them.
Apply hyaluronic acid under or after a retinoid to help manage dryness.
Use with caution
- Glycolic Acid — Space out use
Combining a retinoid with a direct AHA in the same routine compounds irritation and dryness.
Use on alternating nights, or apply one in the AM and the other in the PM if both are wanted.
- Lactic Acid — Space out use
Combining a retinoid with a direct AHA in the same routine compounds irritation and dryness.
Use on alternating nights.
- Salicylic Acid — Space out use
Layering a retinoid with a BHA exfoliant in the same session increases the risk of redness and peeling.
Use on alternating nights, or space applications by at least 30 minutes.
- Ascorbic Acid — Space out use
L-ascorbic acid performs best at a low pH that can add irritation when layered directly with a retinoid.
A common approach is vitamin C in the AM and retinoid in the PM.
- L-Ascorbic Acid — Space out use
L-ascorbic acid performs best at a low pH that can add irritation when layered directly with a retinoid.
A common approach is vitamin C in the AM and retinoid in the PM.
- Bakuchiol — Avoid combining
Both are cell-turnover-promoting actives; combining a retinoid with a retinol-alternative compounds irritation risk without established added benefit over using one.
Choose one cell-turnover active per routine rather than layering both.
Real products containing this
Sources
This page provides general skincare information and is not medical advice, diagnosis or treatment. Ingredient interactions and evidence summaries reflect published, cited sources — not a personal assessment of your skin. For medical skin conditions, rashes, pregnancy/lactation questions or persistent concerns, please consult a licensed dermatologist or HPCSA-registered practitioner.