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.
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.
Apply your vitamin C first, since it has the lower pH of the two. Then, wait half an hour before you apply your retinol. Incorporating the waiting period allows your skin's pH to return to normal, so each ingredient can work at its intended pH.
In short: yes, you can use vitamin C and retinol together; try retinol at night and vitamin C during the day—always with sunscreen.
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.
We all have different skin needs and routines, but as a general rule, we recommend incorporating vitamin C into your skincare regime every—or every other—morning. We specify morning, because the antioxidant helps to protect from things like pollution and UV light, which you're typically exposed to throughout the day.
While it's all down to your skin (and no one knows your skin better than you), most prefer to apply vitamin C serums in the morning because of its antioxidant properties—which means that it helps to defend against pollutants and free radicals that could otherwise damage skin throughout the day.
"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.
Use your vitamin C serum first, and let it dry.
Then "Let vitamin C completely dry prior to placing niacinamide," says Lamm. That way, the ascorbic acid has a chance to settle into the skin, and there's a smaller chance of combining the two actives.
If you are applying a Vitamin C serum and hyaluronic acid separately, it's suggested that you apply the Vitamin C first, and then add the hyaluronic acid afterward in order to help fortify the skin barrier and lock in the moisture.
Vitamin C serum (leave to absorb for 1-2 minutes)
Dr Khan explains: “With vitamin C, you want to get the most out of the product by not diluting it. A couple of minutes should be an adequate time for the product to dry down before you go in with your next step.”
Niacinamide With Vitamin C Are a Winning Combination
This means that you're safe to use both niacinamide and vitamin C, either together in the same product, or combined from different products that you layer one over the other.
Yes, you could use niacinamide in the morning and vitamin C at night. Both ingredients are highly effective and are able to deliver impressive results whenever they are applied to the skin.
Step 4: Apply a moisturizer (Yes, your moisturizer should come after your Vitamin C serum — remember the “thinnest to thickest” rule.)
Know when to go in reverse.
If your sensitive skin reddens with the thought of using even one treatment product, try putting on a simple, fragrance-free moisturizer first and then serums on top. "The cream will reduce the potency of the serums," says Dr. Hirsch, "but they'll also be less likely to cause irritation."
AHAs and BHAs, such as glycolic, salicylic, and lactic acids should never be used with Vitamin C. Vitamin C is an acid, too, and is unstable, so the pH balance will be thrown off by layering these ingredients together and might as well be useless.
Can you use niacinamide with retinol and vitamin C? You can indeed use all three of these ingredients together, but the order in which you layer them play an important role when avoiding skin irritation. To gain optimal results I would suggest using a serum enriched in vitamin C during your morning routine.
Both vitamin C and niacinamide increase the natural production of ceramides in your skin which helps to strengthen your skin barrier, keep your skin hydrated, and reduce irritation. However, niacinamide is probably the better option for sensitive skin as it's usually gentler than vitamin C.
Use vitamin C for hyperpigmentation caused by melanin and use niacinamide if your skin can't handle vitamin C. Keep in mind this is a very hard and fast rule because they aren't easy to compare without really knowing your skin concerns and skin sensitivity.
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.
Vitamin C serum is typically applied once or twice per day. A good rule of thumb is to cleanse, tone, apply vitamin C serum, and then moisturize. It can be safely used with other active ingredients, although using alongside niacinamide may make vitamin C less effective.
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.
In the morning, after applying your Vitamin C serum, follow this brightening ingredient with a layer of hydrating Hyaluronic acid. In your nightly routine, apply Hyaluronic acid before Retinol as it can increase its effectiveness while also helping to lock moisture in for maximum hydration.
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.