The reason why people suggest a maximum of two or three serums comes down to layering and penetration. Heaps of brands, salons and experts recommend leaving time between applying your serums and moisturisers, and doing it in a specific order so as to allow all of the ingredients to actually sink into your epidermis.
While there is no limit to how many serums you can add to your regimen, esthetician Enrique Ramirez, founder of Face to Face NYC, suggests stopping at three. Piling on more products than that is not only time-consuming, it also reduces the chances of each ingredient getting properly absorbed by your skin.
“Using too many serums can run the risk of causing irritation if too many active ingredients are being applied at once,” Garshick explains. Not only that, but too many layers can make it harder for your skin to soak up the nourishing goodness.
Limit to Two Serums Per Routine
We recommend you use no more than two face serums per routine. Again, alternating skin care items is a strategy here. If you have many serums that you like, use one or two in your morning routine and two different serums in the evening.
Apply the thinnest facial serum first, or, if serums are the same consistency, start by addressing your primary skin concern. Massage a few drops into the skin, then wait until absorbed before applying your secondary serum.
Can You Use Hyaluronic Acid and Vitamin C Together? Not all powerful skincare ingredients can be mixed, but hyaluronic acid and vitamin C are two that become even stronger when paired with one another. These ingredients can provide both immediate and lasting results when used together in anti-aging formulations.
A Vitamin C serum should be used in your bedtime routine and a couple of drops of it should suffice. Tap it on your skin using your fingertips and leave it on overnight. Wash your face in the morning and apply SPF to avoid any skin irritation.
You can absolutely use vitamin C and niacinamide together, Singh goes on to emphasize. That said, if you ever have any doubts as to whether it's safe to mix two skin care ingredients, a dermatologist can always offer advice. Your skin is affected by more than what you put on it.
Vitamin C serum benefits
If you're wondering when to apply a vitamin C serum, the answer is both morning and night, after cleansing and toning. One study even recommends applying a vitamin C serum every eight hours, or twice daily for the pinnacle of protection.
"Because vitamin C serum helps protect your skin from free radicals, most dermatologists have recommended applying it in the morning to prevent damage during the day," says Joshua Zeichner, the director of cosmetic and clinical research at Mount Sinai Hospital in New York City.
It's an ingredient found in a number of moisturizing skin-care products, as well as certain foods and supplements like multivitamins. Can you use niacinamide every day? Yes. In fact, you can use niacinamide-containing topical products in the morning and night because it's generally a gentle ingredient.
1. Use your vitamin C serum first, and let it dry. Since vitamin C is notoriously unstable, you always want to apply it on clean, dry skin. Then "Let vitamin C completely dry prior to placing niacinamide," says Lamm.
Don't Mix: Niacinamide and vitamin C. Although they're both antioxidants, vitamin C is one ingredient that's not compatible with niacinamide. "Both are very common antioxidants used in a variety of skincare products, but they should not be used one right after the other," says Dr. Marchbein.
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.
Good (Skin) Days C's The Day Serum
Vitamin C moisturizers are also becoming more common, Dr. Lamb says, and you'd want to use those at the end of your skin-care routine. And if you're wondering if you can use vitamin C every day, the answer is yes.
Vitamin C can certainly be applied before bed, but because of its antioxidant properties it's best to slather on your favorite product in the morning. It's also important to combine it with a sunscreen of SPF 30 or higher. Sunscreen and vitamin C are a dynamic duo that work together to protect your skin.
Hyaluronic acid and niacinamide:
When used together, always go with applying hyaluronic acid first, followed by Niacinamide. By following this, you would be able to attract plenty of hydration first. After that, apply Niacinamide to help regulate the sebum production and help with the minimization of pores.
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.
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.
In general, it is best to apply serum before moisturizer. This gives the active ingredients in the serum the best chance of working. Otherwise, the best order and time of day for a skin care routine depends on the products' ingredients and the person's goals.
Since serums contain the active ingredients that you want to penetrate as deeply as possible into your skin, you should always apply a serum directly to your skin after cleansing or toning and before your moisturizer and sunscreen. Don't put your serum on after you moisturize.
Niacinamide is an ingredient that is gentle enough to be used twice a day, seven days a week, Dr. Gonzalez and Dr. Rabach say. To apply niacinamide, first wash your face and, if you use one, apply a toner.