Jun 10
AHA, BHA and PHA Functions in your Skincare

Know the Functions of AHA, BHA and PHA on your Skincare

The terms chemical exfoliation and acidic / acidic beauty treatments seem to be crazy and favored by women. It might seem terrible when you think of acidic chemicals that touch the skin. However, do not compare with ordinary acids used in industry or laboratories that can harm and harm you when touched. The acid here is purified into AHA, BHA, and PHA, all of which have passed clinical trials safely and effectively used as ingredients in beauty products.


Alpha Hydroxy Acid (AHA)

The AHA works on the outer portion of the skin, effectively lifting dead skin cells, reducing the appearance of fine wrinkles, uneven skin texture, redness, and acne scars. However, the AHA cannot work into the deeper layers of the skin, because its water-soluble texture does not allow the AHAs to penetrate the oil layer in the pores.

Some examples of popular AHA used in beauty products are glycolic acid (having a smaller molecular size, so that it can sink slightly deeper) and lactic acid (having a larger molecular size, usually softer on the skin due to lower penetration ability than glycolic acid).


Beta Hydroxy Acid (BHA)

BHA works more effectively on oily skin, which is prone to acne, blackheads and milia. Why? Because of its oil-soluble texture, the BHA is able to penetrate into the pore and pass through and dissolve and cleanse the oil content that clogs your pores, besides that BHA also has the function of exfoliation on the surface of the skin.

The most popular type of BHA is salicylic acid, which according to Paula of the Paula’s Choice beauty brand effectively removes dead skin cells, but does not remove the skin's natural oils. Salicylic acid also functions as an anti-inflammatory that can soothe inflammation in zits and reduce facial redness due to acne.


Polyhydroxic Acid (PHA)

Briefly, PHA is quite similar to AHA, but with a much larger molecular size, so it cannot penetrate as deep as the AHA and BHA into your skin layer. This means that the effect will be softer and suitable for sensitive skin, because the possibility of causing less irritation, even for those who have skin diseases such as eczema and rosacea.

After getting to know the three types of chemical exfoliation above, you should follow these two methods so that the maximum results when using these products:

1. Use after double cleansing so there is no residual makeup
First, you have to do double cleansing first, using micellar water or makeup remover, then wash your face with face soap. Keep in mind that chemical exfoliation cannot be used to clean makeup, so you should still clean your face first.

2. Use it regularly so the results are maximum
The type of chemical exfoliator should only be used once every 2-3 weeks. However, if you only use exfoliating toner products or pads from Korean beauty products, it can generally be used every day because it tends to be more 'friendly' or soft.


But it is better to use at night, because it will really help your skin to be more optimal in absorbing the next series of skincare such as serum or essence.