To use the L'Oréal Paris Revitalift Derm Intensives Night Serum, 0.3% Pure Retinol, apply two to three drops to freshly-cleansed, dry skin at night and follow up with your moisturizer. Editor's tip: If your routine consists of more than one serum, again, apply from the thinnest to the thickest.
If you don't notice side effects, you can apply it more often. To reduce the risk of irritation, try washing your face first and then waiting about half an hour before you apply the retinol treatment. Retinol is best applied at night since it can increase your skin's sensitivity to the sun.
Retinoids work best if you use them daily. Specifically, they should be used at night because some types are deactivated by light and air. It's important to start slowly and allow your skin time to adjust. Using too much too quickly can cause redness, dryness, and irritation.
For prescription retinols, you'll typically apply this step onto dry skin before your moisturizer—but always check with your dermatologist. You may be advised to use it after a moisturizer, which buffers the retinol and lessens risk of irritation.
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.
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.
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.
After applying retinol to your skin (while it's dry) allow it to sit for 10-20 minutes. Mist your face with water or a facial spray, and then apply your hyaluronic acid. (HA serums are most effective when they're applied to damp skin.) Finally, follow your HA serum with a moisturizer right away.
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.
"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.
Always apply Retinol products at night, as sunlight can diminish their power. If you're a prescription-strength user, use Retinol as the first layer on your skin after washing your face with a cleansing cream and before applying your anti-aging moisturizer.
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.
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.
Mix It Up. One tip to help your skin adjust to retinol is to mix your retinol with your face moisturizer and then apply it to your skin. This allows the retinol to be a little gentler on your skin, which is great if you have sensitive skin.
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.
No matter which form you choose to incorporate your hyaluronic acid, it should be close to the final step in your routine. If you are using it in serum form, you'll apply it immediately after your retinol. If it is part of your moisturizer, it will be your last step.
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.
“AHA, BHA, retinol, and benzoyl peroxide can be mixed with moisturizing ingredients like hyaluronic acid, ceramides, and rosehip oil to get effective results — just ensure you are not using retinol as well as AHA or BHA's during the day," says Graf.
Dr. Mariwalla says coating your skin with Vaseline after applying retinoids or AHA acids would increase penetration of these ingredients, potentially leading to irritation.
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.
The problem is, retinol can be irritating when applied straight to the lips (so keep your prescription-strength cream off your mouth for the time being). But Verso's formula contains a gentle derivative, called retinol 8, which can reduce the appearance of fine lines around the mouth overtime.
Engelman agrees: "Retinol is the most potent ingredient that helps build collagen and elastin, which leads to tighter, smoother skin."This mixture has the added bonus of hyaluronic acid, which "can smooth, firm, and tighten the appearance of the skin," Dr. Bowe says.