A tell-tale sign of vitamin c over-use can be increased blackheads or a development of blackheads. General skin irritation and breakouts can also occur if you are using your vitamin c too much or too often. We recommend using your serum 1-2 times a day and 2-4 drops is all that is needed.
According to studies, the benefits of Vitamin C serums tend to continue increasing along with increased strengths, but only up to about 20% concentrations. After 20% Vitamin C content, you may run into more irritation from the high concentrations without seeing much benefit in return.
Vitamin C serum benefits
One study even recommends applying a vitamin C serum every eight hours, or twice daily for the pinnacle of protection. Vitamin C has photoprotective properties and staves off oxidative stress from the free radicals we meet throughout our day.
This ingredient comes in different strengths and concentrations meaning that all skin types—even sensitive or problem complexions—can enjoy its benefits. While it can be applied daily, start with 3-4 times a week if you like to play it safe and work your way up.
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.
A tell-tale sign of vitamin c over-use can be increased blackheads or a development of blackheads. General skin irritation and breakouts can also occur if you are using your vitamin c too much or too often. We recommend using your serum 1-2 times a day and 2-4 drops is all that is needed.
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.
Serum. A pea-sized amount of serum gives your skin a concentrated boost of ingredients that help with hydration, exfoliation, acne, or dull skin. If you use too much: Using too much of any product leaves active ingredients sitting on your skin. Some, such as exfoliating serum, can lead to stinging or peeling.
It is unlikely that vitamin C serums will cause acne. There is some evidence to suggest that using a vitamin C serum may make your skin more vulnerable to bacteria.
"Plus, vitamin C is often combined with other antioxidants, including vitamin E (tocopherol). Even though the combination of C and E has been shown to have greater skin benefits than either vitamin alone, vitamin E is oil, so the combination can cause breakouts for people who have acne-prone skin."
Serum/Oil:
If you overuse serum, your skin may not absorb the beneficial ingredients of the product and instead, it will be left sitting on the surface of your face. This could lead to extra oily skin, breakouts and even irritation."
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.
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.
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.
Don't Mix: Retinol with vitamin C, benzoyl peroxide, and AHA/BHA acids. AHA and BHA acids are exfoliating, which can dry out skin and cause further irritation if your skincare routine already includes retinol. As for benzoyl peroxide and retinol, they cancel each other out.
"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.
For those with sensitive, reactive skin, certain forms of vitamin C can be shockingly irritating, leading to dryness, peeling, and redness.
For a more affordable option, two of our dermatologists recommended Drunk Elephant's C-Firma Day Serum. Because it contains a similar formula to the SkinCeuticals C E Ferulic, you get all the skin-brightening benefits at “half the cost,” according to Dr.
When should you throw out a vitamin C serum? Once your serum begins to turn yellow, it is a clear sign that too much air has mixed with the formula making the vitamin C less potent, once the formula becomes discoloured in any way it is best to throw out the product completely.
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.
No, it does not. It may stain your skin but it cannot darken your skin. It is important to know the difference between staining and darkening the skin. Staining is where the product reacts with your dead skin cells and leads to a change in the color of those dead cells.
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.
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.