Glycolic acid is the most popular
Marmur: “You can layer acids as long as you know which ones to mix. You don't want to use too many drying acids, as your face will become flaky and irritated. The safest bet is to just find the one acid that works for you, and stick with it. The more you layer, the more irritated and raw your skin will become.”
“While hyaluronic acid helps in hydrating your skin, glycolic acid exfoliates dead skin cells,” he explains. It's one of the safest alpha-hydroxy acids (AHAs) you'll find in skincare products—meaning, unlike hyaluronic acid, glycolic acid actually is an acid.
Niacinamide and glycolic acid are both common ingredients in exfoliating products. Glycolic acid helps to break down the top layer of dead skin cells to encourage a smoother complexion. Niacinamide increases the skin's elasticity to help improve the appearance of fine wrinkles and lines.
It is OK to use 1-2% containing glycolic acid face wash or ointments daily. The creams have a higher glycolic acid content (10% and above) and must only be used once or twice a week to avoid skin irritation. The creams with a concentration above 15% may need to be kept only for a few minutes and then wiped off.
"If salicylic acid is an ingredient in your cleanser, it is fine to use it every day." However, if you are using an exfoliant that salicylic acid in the formula, Dr. Hu advises only using the product three times per week, to avoid over-exfoliating the skin and drying it out.
Salicylic acid and vitamin C are both effective products on their own but, when combined, they can be even more beneficial. Whether you're looking to brighten your skin, reduce the likelihood of blemishes or just help slow down the skin's natural aging process, these ingredients may be just what you're looking for.
Short answer is: Yes! You certainly can. To make niacinamide and AHAs/BHA work together, layer them on your cleansed face—just 30 minutes apart. You can also use them at different times of day, use niacinamide in the morning and AHAs/BHA at night.
The beauty of glycolic acid and hyaluronic acid is the fact you can use both together! Quite often you'll find when there is a build-up of dead skin cells the complexion can begin to look dull, dry, and lacklustre with fine lines and wrinkles appearing to look worse than they are.
Yes, you can use Hyaluronic Acid and Niacinamide every day, adding them up to your day and night routine.
Can I Combine AHA/BHA With Hyaluronic Acid? Yes! In fact, this is an ideal combination. Hyaluronic acid doesn't function like an AHA or BHA in that it does not strip your skin — it's actually highly nourishing and hydrating, so having “acid” in the name is a bit misleading.
You can actually layer your glycolic acid and niacinamide together, at the same time of day—just 30 minutes apart. When layering products, start with the one that has the lowest pH first.
Hyaluronic acid is a skin hydrator, not an exfoliant like salicylic acid. You can definitely use both. In fact, applying hyaluronic acid with your salicylic acid is a very good idea. Salicylic acid can be a little drying to the skin because it's job is to absord excess oil.
Does niacinamide go before lactic acid? It is advised to apply niacinamide after lactic acid. This ensures the acid can work at exfoliating whilst niacinamide restores hydration back into the skin barrier. This is a result of each ingredient containing different pH levels.
Doing so will help remove surface skin issues without damaging or drying out the skin. However, for individuals with oily or combination skin, salicylic acid is often the better choice.
The main difference between the two acids is the fact that hyaluronic acid doesn't perform exfoliating properties unlike lactic acid. Lactic acid is able to slough away the build-up of dead skin cells, which can result in breakouts, flaky patches of skin and lack lustre complexion.
Can glycolic acid be mixed with salicylic acid? You can certainly use glycolic acid and salicylic acid together, but we would suggest avoiding mixing them together. This is because combining such potent ingredients will cause a severe reaction to the skin, as well as potentially damaging the skin barrier.
Hyaluronic acid is best if they're looking to moisturize dry skin, while retinol works better by encouraging better skin by boosting collagen production. They have several benefits that can work in tandem for better results, though patients need to be careful with the exact formulations they use.
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.
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.
What goes first salicylic acid or niacinamide? It is considered the best idea to apply niacinamide before salicylic acid. This is because the humectant traits of niacinamide ensure the natural skin barrier contains the correct levels of water.
Can niacinamide and salicylic acid be used together? The simple answer is yes. They complement each other well. Being oil soluble, salicylic acid can penetrate deeper into the skin layers, but it can also dehydrate and irritate skin.
People use niacinamide to prevent vitamin B3 deficiency and related conditions such as pellagra. It is also used for acne, diabetes, cancer, osteoarthritis, aging skin, skin discoloration, and many other conditions, but there is no good scientific evidence to support most of these uses.
Retinoids and serums can be used together, especially if the serum is soothing or hydrating. Be careful using very aggressive face oil serums with retinoids.
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.