Two products that often come up in Beauty Secrets videos and get-ready-with-me routines are retinol and tretinoin. At first glance, these retinoids seem similar—they both target the same key anti-aging and acne concerns—but there are important differences between them. Before adding a retinoid to your routine, check out this expert-backed guide first.

What’s the difference?

The main difference is how strong they are. Dr. Hadley King, a board-certified dermatologist in New York City, explains that all retinoids work by turning into retinoic acid, the active form that affects our skin cells. Retinol needs two steps to convert into retinoic acid, while tretinoin is already in that active form and skips those steps. This makes tretinoin the more powerful option.

Because tretinoin is much stronger than retinol, you can only get it with a prescription. Dr. Helen He, director of lasers and cosmetic surgery and co-director of the Mount Sinai-Clinique Healthy Skin Dermatology Center, says retinol is less potent and is available in many over-the-counter products.

When to Use Tretinoin

Tretinoin boosts skin cell turnover and is best known for treating stubborn breakouts. It also helps with collagen production and improves fine lines, wrinkles, uneven skin tone, texture, and overall skin quality. “Of all topical active ingredients, tretinoin has the strongest evidence for treating both acne and sun damage,” says Dr. He.

It comes in two forms: a cream or a pill. As a topical cream, it’s easy to add to your routine, but dermatologists all agree on one thing: “Start slowly and build up your tolerance gradually,” says Dr. King. She suggests applying tretinoin at night, beginning with two to three nights a week, and increasing the frequency as your skin gets used to it.

Use only a pea-sized amount for your whole face after cleansing. Then, lock it in with a moisturizer—Dr. He says this is key for protecting your skin barrier and reducing irritation. She recommends moisturizers with ingredients like ceramides, glycerin, dimethicone, and panthenol for barrier protection, and centella asiatica to calm any irritation.

You can also try the “sandwich method”: apply moisturizer, then tretinoin, and finish with another layer of moisturizer. Or, mix tretinoin into your moisturizer to help reduce side effects.

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You should wear SPF every day no matter what, but it’s absolutely necessary when using tretinoin because your skin becomes more sensitive to the sun. Dr. He also advises being careful with other strong active ingredients like alpha hydroxy acids, beta hydroxy acids, and vitamin C, as they can cause more irritation. Her tip: “If you use tretinoin at night, it’s better to use other active ingredients in the morning.”

But it’s important to know that not everyone can handle tretinoin. Its side effects—like dryness, irritation, and sun sensitivity—are much stronger than retinol’s. For sensitive skin, Dr. He says it’s best to avoid strong prescription retinoids, as they can damage the skin barrier and cause more harm. And if you’re pregnant or breastfeeding, Dr. King advises avoiding it altogether.

When to Use Retinol

Both experts agree that retinol is a better choice for people with sensitive skin or anyone who can’t handle tretinoin’s strength. Dr. KIng adds that thinner skin, like on your neck and décolleté, handles retinol much better than stronger retinoids like tretinoin. So if you’re looking to treat fine lines and sagging in those areas, go for products with retinol. Dr. He also notes that after menopause, skin becomes more sensitive and the skin barrier weakens, so she prefers recommending retinol over tretinoin for aging concerns.

For proper use, she suggests easing into it gradually. Start with two to three times a week, then increase to nightly if your skin can handle it.

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Just like with tretinoin, you need to be careful when mixing retinol with other ingredients, especially active ones like alpha hydroxy acids, beta hydroxy acids, and vitamin C. She adds that retinol is usually applied in the evening as part of your nighttime skincare routine, using only a thin layer in moderation to lower the risk of irritation. If you’re using a retinol serum, she says to follow up with a moisturizer for extra hydration and look for ingredients like ceramides, glycerin, dimethicone, and panthenol to protect the skin barrier. And always use SPF, especially if you use retinol during the day.

Similar to tretinoin, those who are pregnant or breastfeeding should avoid retinol. You should also be cautious if you have inflammation, open wounds, or an infection. As a general rule, she says to avoid using it if it compromises the skin barrier.

Don’t use tretinoin and retinol at the same time. “Using multiple retinoid products together increases the chance of skin irritation,” she says. In some cases, you might alternate between the two if you can’t handle daily tretinoin, but always check with your dermatologist to find the best retinoid for you.

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Frequently Asked Questions
Here is a list of FAQs about Tretinoin vs Retinol Which One Should You Use written in a natural tone with clear concise answers

BeginnerLevel Questions

1 What is the difference between Tretinoin and Retinol
Both are forms of Vitamin A that help your skin renew itself The main difference is strength Tretinoin is a prescriptionstrength retinoid that works fast while Retinol is a milder overthecounter version that works more slowly

2 Which one is better for antiaging
Tretinoin is generally considered the gold standard because its stronger and has more research backing its ability to reduce fine lines and wrinkles However Retinol is a great gentler option if you have sensitive skin or want to start slowly

3 Can I buy Tretinoin at the drugstore
No Tretinoin requires a prescription from a doctor or dermatologist Retinol is available overthecounter in serums creams and lotions

4 Which one should a beginner start with
Start with Retinol Its much gentler and gives your skin time to adapt to Vitamin A Jumping straight into Tretinoin can cause severe irritation redness and peeling

5 Will Retinol work as well as Tretinoin
Retinol works but its less potent It has to be converted by your skin into retinoic acid so results take longer

IntermediateLevel Questions

6 How do I know if I need a prescription for Tretinoin
You likely need a prescription if you have stubborn acne deep wrinkles or sun damage that hasnt responded to overthecounter products A dermatologist can assess your skin and decide if the stronger option is right for you

7 What are the side effects of Tretinoin vs Retinol
Both can cause dryness redness and peeling Tretinoin is much more likely to cause these side effects especially when you first start Retinol is gentler but can still irritate if you use too much