After cleansing and patting down your face at night, wait a few minutes to guarantee that your skin is totally dry—“damp skin can interfere with how much retinol is absorbed, which can result in irritation,” says Gohara—then squeeze a pea-size dab of retinol into your palm.
To apply a serum with retinol correctly, Smooth it onto clean skin before your moisturizer. Your serum will have a thinner consistency than your moisturizer, which is what determines the application order.
Retinol should always be applied at night.
It's especially sensitive to light, which is why it's kept in dark packaging or packaging that doesn't let any light through. In order to avoid unnecessary sun damage, only ever apply retinol before you go to bed.
Retinol (leave to absorb for 10-20 minutes)
Retinol is also an ingredient that should be left to absorb sufficiently into the skin before following up with another product. “It is important to leave a 10-20 minute wait time before applying the next product.
Rouleau says the best time to use a scrub is in the morning. Overnight you've loosened up dead skin cells with your glycolic acid or retinol products, making the morning a perfect time to brush them off.
Regardless of your skin type or which product you use first, a layer of moisturizer should always be applied after retinoids.
Don't Mix: Retinol with vitamin C, benzoyl peroxide, and AHA/BHA acids. AHA and BHA acids are exfoliating, which can dry out skin and cause further irritation if your skincare routine already includes retinol. As for benzoyl peroxide and retinol, they cancel each other out.
Retinol is best applied at night since it can increase your skin's sensitivity to the sun. When you do go outside, be sure to use sunscreen to protect your face. It's worth noting that you don't need to use retinol on a daily basis for it to effectively treat your acne. Even two to three times per week might be enough.
Should you use retinol under your eyes? Yes, definitely. While it is true that retinol – a form of vitamin A – is a powerful ingredient and the skin under your eyes is delicate, there's no reason why you should miss out on the amazing benefits of retinol.
Most face serums are safe to be applied twice daily – once in the morning on a cleansed face, before the rest of your makeup, and once at night before bed.
"Retinol makes your skin more sensitive to UV rays and sunlight decreases the efficacy of the product," explains Bowe, who instructs patients to only use retinoids at night and be diligent about applying a daily broad-spectrum SPF 30 or higher during the day.
And now another rule to keep in mind: Many prescription-strength retinoids suggest users wait upwards of 20 minutes post-cleansing before putting retinol on their skin and 20 more minutes before putting anything else on, according to Reddit.
Apply topical retinoids
Retinoids, which are topical vitamin A-based derivatives, may help reduce fine lines and wrinkles by increasing collagen production. If you use retinoids on your face, extend the treatment area to your neck and chest at night. Retinoid products are available by prescription or over the counter.
When applying, first cleanse, tone, and exfoliate your face. (Only do all three of these steps if they're included in your current skin care routine.) Then apply a small, pea-sized amount of retinol to dry skin. Spread it over your face, avoiding your eyes and mouth.
Retinoids reduce fine lines and wrinkles by increasing the production of collagen. They also stimulate the production of new blood vessels in the skin, which improves skin color. Additional benefits include fading age spots and softening rough patches of skin.
There are no set rules on how old you should be to use retinol. For anti-aging purposes, you can start preventatively in your 20s. While over-the-counter retinol can help mild acne, many people with breakouts will need a prescription.
Dr. Mariwalla says coating your skin with Vaseline after applying retinoids or AHA acids would increase penetration of these ingredients, potentially leading to irritation.
The truth: You can use vitamin C with retinol and retinoids. Get them as separate products so you can tailor the concentration of each and use them at the right time of day. Although vitamin C can be used day or night, it is ideal for daytime use, while retinol and retinoids should be applied at night.
What Are the Benefits of Combining the Two? Good news: Retinol and hyaluronic acid actually have a synergistic effect. “They can be combined so that the benefits of retinol can be achieved more easily with concomitant use of hyaluronic acid, which helps to prevent retinol irritation,” says Hartman.
Retinol is potent, but that doesn't mean it can't get along with anybody else on the playground; you just have to choose its playmates wisely. Pairing retinol with a simple moisturizer (think Cetaphil Moisturizing Lotion) makes for a perfect combo if dryness and irritation are your big retinol woes.
To allow serums to fully absorb, apply and wait 5 minutes before moisturizing. Take note: Well-formulated serums absorb quickly and disappear into your skin. If they leave an oily or sticky residue, they're not doing their job well.