In the beginning there were only a few pioneering brands, then others joined and now almost all those who deal with skincare have among their references products based on salicylic acida chemical exfoliant which helps keep skin clean, glowing and healthy.
This ingredient is usually associated with facial care but can prove to be a also a precious ally for maintaining a healthy scalpand it is no coincidence that there are more and more brands haircare to make shampoos or other products that contain it.
«We must not forget that the scalp is also skin, and for treating it there are rules in many cases similar to those that should be taken into consideration for the face», explains the dermatologist Chiara Bonatti.
There are two types of acids: AHAs (alpha-hydroxy acids) and the BHAs (beta-hydroxy acid). Salicylic is part of the latter category and this gives it the characteristics of being «lighter than others but still having excellent exfoliating propertiesgiven by the ability to break the bonds between keratinocytes cells and ensure that the most superficial layer of the skin replaces more quickly”.
Thanks to yours too anti-inflammatory actionUsing it regularly on the skin allows you to clean it deeply by eliminating bacteria and dead cells, treating problems such as acne and regulating sebum production.
Benefits on the scalp
But the reasons to learn more about this acid don’t end here, since it can literally make the difference in the treatment of scalpespecially for those who particularly have it fat or suffers from certain problems, it is obviously to be used under medical advice.
«I recommend it above all to treat forms of desquamative seborrheic dermatitis such as dandruff, which in turn is very often caused by a fungus – continues Chiara Bonatti. – Regularly using a shampoo with salicylic acid serves to exfoliate the scalp, eliminate dandruff and fungus and significantly improve the problem and all the symptoms connected to it such as itching. Since it is an anti-inflammatory element it is also excellent for fighting psoriasis.
Salicylic acid is a fat-soluble substance and, although it does not act directly on the sebaceous glands, it manages to act on blocked follicles to eliminate dead cells and excess sebum. A feature that also makes it useful for those who, despite not having particular problems, find themselves having to manage a scalp particularly fat and oily.
It also facilitates the haircare routine, makes the optically more beautiful hair and stimulates its growthalthough it is good to remember that salicylic acid does not act directly on them but only on the skin.
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How often to use shampoo with salicylic acid
«At the moment no negative effects on the hair or scalp have yet been found, so the use is rather free, also because in the formulations of shampoos and other hair products salicylic acid is contained in extremely low quantities, usually around 2% and no further – specifies the dermatologist. – Continuous use in a person who has dry hair and scalp and therefore does not need it can cause damage to the hair shaft but in general there are no contraindications and those who fall within the categories listed can safely use it for all washes or washes alternate.”
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Better than scrub
Salicylic acid shampoo is also very good alternative to scalp scrub products «which cause mechanical trauma and can create small cuts on the skin. To purify the area I always recommend it, as well as other chemical exfoliants, which do the job they promise without being aggressive”, concludes Chiara Bonatti.
Before trying salicylic acid-based hair products it is recommended to do a test on a small area of the body to test skin sensitivity and avoid exposure to the sun, wearing a hat can help.
Source: Vanity Fair
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