These products contribute to cell renewal and help lighten the skin of the face.
Skin spots can be caused by several factors, such as acne, sunburn, sun exposure, hormonal changes, aging, etc. Usually, darkening occurs due to an abnormality in the skin’s natural pigmentation. However, some of them can be softened and even treated with the use of certain types of acids.
“We can invest in treatments to whiten blemishes and control melasma, a dermatosis common in women during pregnancy and characterized by dark, symmetrical patches that appear on the cheekbones, forehead, nose and upper lip. And acids seem like good options, to the extent that it is. in which they offer a cell renewal or spot lightening effect “, emphasizes Dr. Mônica Aribi, dermatologist, member of the Brazilian Society of Dermatology.
1. Azelaic acid: with whitening action
Azelaic acid is a therapeutic option that can also be used pregnant to prevent, improve, control and lighten melasma, according to the dermatologist. “This acid acts on the pigment-producing cells (melanocytes), interrupting this activity and its development. It is an active that acts on excess pigmentation, and not on the normal skin pigment, inhibiting an enzyme called tyrosinase, which acts and stimulates the process of production of melanin, the pigment that gives color to the skin “, explains the doctor. This substance can be used on the face and body.
2. Retinoic acid: for cell renewal
With no direct whitening action, this acid is indicated to improve cell renewal, which ‘eliminates’ stained cells from the surface. “For this renewal effect, it can be used in conjunction with other whitening substances with the advantage of bringing stain-free cells to the surface,” says the doctor. Caution and medical advice should be taken when using this acid, which is photosensitive. Therefore, the day after the use of this acid, the application of the photoprotector is essential.
3. Glycolic acid: with exfoliating action
Strong ally against stains, thanks to its robustness exfoliating ability, this acid breaks down and reduces the adhesion between the cells of the first layer, opening the entrance doors for everything that is with it to penetrate. “Therefore, it can be a complement to act against blemishes, as it reduces the thickness of the skin and facilitates the work of whitening substances”, says the dermatologist.
4. Kojic acid: for a natural depigmenting effect
Admitted during the summer and during pregnancy, this acid is derived from several fungal species and is considered extremely important for stain treatment. “It is a powerful natural depigmenter and inhibits the action of tyrosinase, favoring the reduction of pigment formation, and can be used in synergy with many other lightening active ingredients to improve results”, explains Dr. Monica Aribi.
5. Ascorbic acid: with antioxidant action
The famous vitamin C is a powerful antioxidant. “This acid evens out the skin tone and has two of them important actions in whitening: inhibits the activity of the enzyme tyrosinase, responsible for the synthesis of melanin, and has a protective effect from UV rays, since photoexposure generates reactive oxygen species, which trigger the production of pigments in the skin. Prefer formulas that aim to maintain the stability of the vitamin, since the compound is chemically unstable, it quickly loses its properties in contact with light, oxygen and heat “, emphasizes Dr. Mônica Aribi.
Always consult an expert
Although they are easily found in pharmacies and online stores, care should be taken when using acids. Dr. Mônica Aribi stresses that the advice of a dermatologist is essential, because, in addition to recommending the most appropriate treatment, the specialist can also indicate the use of low-power lasers, which help treat spots. “In this way prefer products guided by the doctor”, concludes the dermatologist.
* By Guilherme Zanette and EdiCase Writing
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Source: Terra
Benjamin Smith is a fashion journalist and author at Gossipify, known for his coverage of the latest fashion trends and industry insights. He writes about clothing, shoes, accessories, and runway shows, providing in-depth analysis and unique perspectives. He’s respected for his ability to spot emerging designers and trends, and for providing practical fashion advice to readers.
