Salicylic acid belongs to a group of medicines known as keratolytics. It is used in the treatment of scaly skin diseases where the skin has become thickened, scaly and flaky.
Over-exfoliation (as in the case of salicylic acid) can lead to dehydrated, shiny or red skin – or all three. It can thin your stratum corneum which can mean an impaired skin barrier, and this can bring a host of other issues.
A beta hydroxy acid (BHA) that can penetrate the skin to help remove excess oil and unclog the pores, salicylic acid possesses keratolytic properties that enable it to exfoliate dead skin cells and improve texture and tone, noted board-certified dermatologist Marisa Garshick, MD.
The exfoliating properties of salicylic acid boost skin cell renewal. This, in turn, stimulates collagen production and reduces the appearance of fine lines and wrinkles. Collagen also gives your face structure and prevents saggy and ageing skin.
"The primary negative side effect of salicylic acid is its ability to irritate and dry skin in those who are very sensitive or those who overuse it," says Dr. Nazarian.
Salicylic acid is a beta-hydroxy acid that is commonly used in skincare products to help visibly improve the texture of the skin, reduce the signs of aging and increase skin cell turnover, reducing blemishes. Salicylic acid is mainly used in anti-aging and acne products.
It is safe to use products with salicylic acid every day, unless it is specified otherwise on the product usage guidelines or by your health care professional. CeraVe's SA Smoothing Cream and SA Smoothing Cleanser are suitable for daily use.
No, salicylic acid is not a skin lightening (as in whitening) agent and therefore, it cannot lighten your skin. However, since salicylic acid has the ability to exfoliate your skin's surface and remove dead skin cells, it can help give your skin a brighter more even complexion.
Precautions for Salicylic Acid Use
Also, because salicylic acid does affect pigmentations, darker skin types may want to avoid salicylic acid, particularly in high concentrations, to prevent unnatural-looking hypopigmentation.
But in general, salicylic acid is the better choice. Unlike glycolic acid, salicylic acid decreases sebum in the skin. This is important because sebum can clog pores, which increases your risk of an acne breakout. Excess sebum also promotes the growth of bacteria that can cause acne.
It's well-known for reducing acne by exfoliating the skin and keeping pores clear. You can find salicylic acid in a variety of over-the-counter (OTC) products. It's also available in prescription-strength formulas. Salicylic acid works best for mild acne (blackheads and whiteheads).
Do you apply salicylic acid before or after moisturiser? Generally speaking, the most potent skin products containing salicylic acid are those such as serums, spot treatments and cleansers, all of which are applied before moisturisers.
It has the same anti-inflammatory ingredients as aspirin, can help de-clog pores, and is also an exfoliator that helps get rid of dry skin to prevent future break outs (via HuffPost).
It may encourage your skin's collagen production and can improve skin thickness – which ultimately reduces (and sometimes, even reverses) the appearance of fine lines and wrinkles. Thicker skin means fewer wrinkles. This is best is achieved through exfoliation.
“Because hyaluronic acid helps to draw in moisture, not only is it great to help with skin hydration, but it also serves as a way to plump fine lines, wrinkles, and other areas on the face with volume loss, and therefore helps to improve signs of aging and can help give a more refreshed appearance to the skin,” says Dr ...
“You can use a salicylic acid–based cleanser in the morning to unclog pores and avoid acne and a glycolic acid–based cleanser at night to exfoliate your skin and get rid of dead skin cells,” notes Jailman.
At the typical low amounts, AHAs and BHAs are unlikely to affect the epidermis at all. Just like the example above with glycolic acid, this study (cited here) found that the use of 0.5% and 2% salicylic acid caused “thinning of the corneal layer [stratum corneum] without any change in the thickness of the epidermis.”
Since it's an acid, avoid getting any near the eyes or mouth. Also try to keep it off the normal skin. The acid will turn the wart into dead skin (it will turn white).
For warts—Repeat one or two times a day as needed for up to 12 weeks, or as directed by your doctor, until wart is removed. For corns and calluses—Repeat one or two times a day as needed for up to 14 days, or as directed by your doctor, until the corn or callus is removed.
"Salicylic acid is oil soluble, meaning it's able to get inside pores to gently push out dead skin, bacteria, sebum, and any other pore-clogging debris." By removing that debris from your pores, your pores will appear smaller.
Here's the not-so-great thing about salicylic acid: It takes a minute to see it work. “You'll likely see results in four to six weeks,” says Dr. Nazarian, “after which you should continue to use it for long-term effects.” That means you shouldn't expect any miracles overnight—good skin requires patience, y'all.
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.
But overall, stick to using water-based products and serums together. 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.
Salicylic acid decreases postacne hyperpigmentation by its anti-inflammatory effects. Ahn and Kim[18] found salicylic acid to have a whitening effect on the skin as well. Mandelic acid also has a beneficial effect in improving skin pigmentation.