For individuals suffering from the cystic form of acne, a controlled clinical trial has found that Guggul supplements (also known as guggulsterone) outperformed 500 milligrams of tetracycline by a small margin. (16) In the study, 25 milligrams of guggulsterone taken twice daily for three months resulted in the reduction of acne, but more importantly, 50 percent fewer participants had acne relapses. Researchers noted that patients with oily skin responded remarkably better to guggul than others in the study.
Glycolic acid is another chemical exfoliant that dissolves the structural lipids that hold dead skin cells and bind them to the surface. But aside from this, studies have also shown that glycolic acid effectively encourages and stimulates the production of collagen and elastin, restoring damaged skin faster and reducing signs of environmental damage with continuous use.
The other downside to Proactiv+ is that the bottles are small — like, half the size of Paula’s Choice small. Combine that with its recommended two or three-times daily application, and you’re going to be going through a lot of kits, which ultimately means spending more money on your treatment. If Proactiv is the only thing that works for you, it may very well be worth the investment, but we recommend starting with Paula’s Choice to see if you can get the same results at a cheaper price.