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.
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.
Regardless of your skin type or which product you use first, a layer of moisturizer should always be applied after retinoids.
She also says to stick with gentle cleansers (she likes CeraVe), and to always follow your retinol with a moisturizer, especially those with hyaluronic acid and ceramides. If your skin is really irritated, you can try buffering, where you apply moisturizer before retinol to reduce side effects.
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.
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.
But for those using retinol serums or capsules, and then following immediately with a night cream, you may have been sabotaging your efforts by not leaving a lengthy gap. When it comes to the rest of our skincare products, most experts agree that a minute or so is all that's needed in-between steps.
However, if the product makes your skin red and flaky, she suggests mixing the retinol formula with your moisturizer. Use retinol once or twice a week at first to see how your skin reacts, and gradually work up to every other day or three times a week.
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.
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.
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.
Niacinamide and retinol can be combined in one product, which may be easier and more convenient. But they're also available as separate products. If you're using these ingredients in separate products, it's recommended to apply niacinamide first and to then follow with retinol.
Perform the nighttime skincare routine as directed above. 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.)
In general, most people won't need to use an exfoliant with tretinoin. Instead, the best approach is to let tretinoin work on its own to speed up skin cell turnover and improve your skin, all while managing potential dryness, flaking and irritation through good hydration and moisturizing.
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.
Use a retinoid sandwich method when starting to use retinoids to reduce the risk of redness/irritation (this is where you layer your moisturiser, then your retinoid and finally another light layer of moisturiser on top - remember to layer instead of mixing with your moisturizer).
Niacinamide Serum – As most niacinamide serums are water-based, it's best to apply them after cleansing and toning and before oil-based serums or moisturizers. This way, you ensure the highest possible absorption and effectiveness.
When it comes to mixing all three together, the best order to apply them is by starting with retinol, followed by hyaluronic acid, and finally niacinamide. By applying retinol first onto a fully cleansed skin the ingredient can penetrate into the lower layers.
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.
While Vitamin C serum predominantly protects your skin from damage, retinol serum actively heals the damage on your skin. Vitamin C serum protects the collagens while the Retinol serum helps in cell turn over thereby creating new collagens.
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.
Generally speaking, I recommend most people start using retinol in their mid to late-20s, anywhere from 25-30. This is when collagen and elastin production starts to slow down, so it's the perfect time to start reaping the preventative-aging benefits retinol has to offer.
It's best to apply Vitamin C before Retinol, as Vitamin C has a lower pH than Retinol. Once your skin absorbs the Vitamin C serum, your skin will return to its regular pH levels after 30 minutes or so. (You want your skin to return to its normal pH levels so vitamin C doesn't lower the pH of retinol.)
In order to get the best effects, Dr. Tareen recommends not diluting your retinol by mixing it with lotion. If you need to, she recommends applying layers of moisturizer instead. "It's not wrong to mix in moisturizer, just less effective."