Regardless of your skin type or which product you use first, a layer of moisturizer should always be applied after retinoids.
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.
A formula with retinol, like the L'Oréal Paris Revitalift Triple Power Eye Treatment, should be applied after your serums and before moisturizer due to its consistency.
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.
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.
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.
Quick Tips for Incorporating Retinol into Your Beauty Routine. Mix your retinol with your moisturizer, or apply your moisturizer first and then your retinol. Always use sunscreen the morning after you apply retinol. Your skin will be especially sensitive to sunlight, so it's important to protect it.
Pairing the two ingredients is safe and can make retinol easier to use. Niacinamide helps hydrate the skin, which reduces the risk of irritation caused by retinol. Niacinamide and retinol can be combined in one product or used as separate products.
“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.
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.
If it's a non-prescription retinol, apply it according to what type of product it is—a retinol moisturizer will act as the moisturizer step of your routine, while a retinol serum will act as the serum 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.
Is it a good idea to combine Vitamin C, Retinol and Hyaluronic Acid in a skincare routine? Yes. These ingredients work well when used individually and even better when paired together.
Using niacinamide before retinol works well. So does combining them into one product. A 2016 study found that a product containing retinol, niacinamide, hexylresorcinol, and resveratrol improved fine lines, sallowness, wrinkling, hyperpigmentation, and skin tone.
Hyaluronic Acid and Niacinamide
These water-based treatments are a great pair and are made for all skin types — especially babes with dry, acne-prone skin. You'll find niacinamide, a form of vitamin B3, in my Rewind Retinol Serum. Use hyaluronic acid first, followed by my retinol for the best results.
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.
Pairing the two ingredients is safe and can make retinol easier to use. Niacinamide helps hydrate the skin, which reduces the risk of irritation caused by retinol. Niacinamide and retinol can be combined in one product or used as separate products.
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.)
A thick moisturizer with hyaluronic acid would be applied after a vitamin C serum, but a hyaluronic acid serum will come before a face cream with vitamin C in its formula. In the case that you have two separate serums, it still comes down to thickness. Apply whichever is thinner first.
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. Another key tip for using retinol is to incorporate it into your nighttime skincare routine only, as it makes your skin more sensitive to sunlight.
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.
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.
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.
Second, avoid anything with harsh ingredients like alcohol and fragrance, or anything with a high acid concentration. “The majority of over-the-counter (OTC) cosmetic creams, lotions, and serums are water based and contain less than 2 percent hyaluronic acid,” Frey explains.
Serums go first
As a rule, serums should be the first products that touch your skin after cleansing and exfoliating in order to get the best results. Never apply them after your moisturizer as thicker creams and oils create a protective layer over your skin and hinder absorption.