Difference Between AHA, BHA and PHA

What is the difference between AHA, BHA and PHA? These acids are all chemical exfoliators but what makes them different from each other is their specific function. AHA and BHA are widely promoted to be used in skincare products but don't underestimate PHA as it might be in our skincare without us releasing it. Read on for a mini summary of what AHA, BHA and PHA are.

What is AHA, BHA and PHA?

AHA

Alpha Hydroxy Acids
Water-soluble, the smaller the percentage, the less potent the formula.

Source: naturally found in, among other things, fruit, milk and sugar cane

Types: Glycolic Acid, Lactic Acid, Mandelic Acid, Tartaric Acid, Citric Acid

Function:
1. Increase skin's cell renewal
2. Smooth out scars and wrinkles
3. Even out pigmentation. 

Suited for: Oily, Blemish-prone skin

BHA

Beta Hydroxy Acids
Oil-soluble, a group of acids predominantly made up of salicylic acid in skincare. 

Source: Naturally in white willow (salix alba).

Types: Salicylic acid

Function:
1. Anti-inflammatory properties
2. Dissolves excess sebum.
3. Increases cell renewal
4. Help spots disappear quicker 
5. Calm redness

Suited for: Oily skin, clogged pores, inflamed acne

PHA

Poly Hydroxy Acids
Have larger molecules, penetrates more slowly, do not exfoliate as strongly as AHAs and BHA.

Types: Gluconolactone, Lactobionic Acid

Function:
1. Bind moisture
2. Antioxidants
3. Protect the skin's collagen against degradation

Suited for: Sensitive, Dry, Eczema skin

Is AHA BHA PHA good for skin?

What does AHA BHA PHA do to your skin?

How long does it take for AHA BHA PHA to work?

Is it okay to use AHA BHA every day?

What can you not use AHA BHA PHA?

Can PHA cause purging?

Reference:

EVERYTHING YOU NEED TO KNOW ABOUT ACIDS IN SKINCARE

Acids Decoded: What Are AHAs, BHAs And PHAs In Skincare?