The Pico laser and Alexandrite laser for hair removal?
Hello, doctor.
I would like to ask if this product, which contains main ingredients such as copper peptides, sodium PCA, vitamin B5, vitamin E, retinol, and hyaluronic acid, is suitable for use after fractional laser treatment? Also, why are retinoids and their derivatives not recommended for use after fractional laser procedures? Although retinoids can be stimulating, don't they help with collagen production? Additionally, I recently underwent Alexandrite laser hair removal, and the nurse told me not to shave afterward as it would diminish the results.
Is that true? If I have to wait for the hair to fall out naturally, how long will that take? If I shave, will the hair not fall out at all? What is the reason for this? Thank you for your response, doctor.
Xiao Yu, 20~29 year old female. Ask Date: 2012/04/17
Dr. Yang Zhiya reply Dermatology
The use of retinoic acid (A acid) is not recommended before and after procedures such as fractional laser or microdermabrasion due to the potential risk of scarring.
After hair removal, the hair follicles are damaged by the laser light and will naturally shed without the need for special shaving.
Reply Date: 2012/04/17
More Info
Post-laser care is crucial for ensuring optimal healing and results, especially after procedures like fractional laser treatments or hair removal lasers. The product you mentioned, which contains copper peptides, sodium PCA, vitamins B5, E, A (retinol), and hyaluronic acid, is generally suitable for post-laser care. Copper peptides are known for their wound healing properties and can help in skin regeneration, making them beneficial after laser treatments. Sodium PCA is a natural moisturizing factor that helps maintain skin hydration, while vitamins B5 and E provide antioxidant protection and support skin repair. Hyaluronic acid is excellent for hydration and can help soothe the skin post-procedure.
However, regarding the use of retinoids (like retinol or A acid) after laser treatments, it is typically advised to avoid them initially. While retinoids do promote collagen production and skin renewal, they can also cause irritation, redness, and peeling, especially on freshly treated skin. After laser procedures, the skin barrier is often compromised, making it more sensitive and prone to irritation. Therefore, using retinoids too soon can hinder the healing process and lead to adverse reactions. It is usually recommended to wait until the skin has fully healed before reintroducing retinoids into your skincare routine.
As for your question about post-laser hair removal care, it is indeed true that you should avoid shaving or waxing the treated area immediately after the procedure. The reason behind this is that the hair follicles are still in a sensitive state post-treatment. Shaving or waxing can irritate the skin and potentially disrupt the hair removal process. After laser hair removal, the hair will typically shed naturally over a period of time, which can vary from a few days to a couple of weeks, depending on the individual and the specific treatment.
If you were to shave or wax the area before the hair has had a chance to fall out naturally, you could potentially interfere with the laser's effectiveness. The laser targets the pigment in the hair follicle, and if the hair is removed prematurely, it may not be as effective in destroying the follicle, leading to less satisfactory results.
In summary, for optimal post-laser care, it is essential to use gentle, hydrating products like the one you mentioned, avoid irritating ingredients like retinoids until the skin has healed, and refrain from shaving or waxing the treated area until the hair has naturally shed. Always follow your dermatologist's specific aftercare instructions, as they will tailor their advice based on your individual skin type and the specifics of the procedure you underwent.
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