Oral isotretinoin is very effective. But because of its potential side effects, doctors need to closely monitor anyone they treat with this drug. Potential side effects include ulcerative colitis, an increased risk of depression and suicide, and severe birth defects. In fact, isotretinoin carries such serious risk of side effects that all people receiving isotretinoin must participate in a Food and Drug Administration-approved risk management program.

For UVA protection, a sunscreen with a high UVA protection of PA+++ or higher of PA++++ as recommended, especially to treat PIE. PPD is the UVA equivalent of SPF; use a sunscreen with a minimum of PPD20. The PA+ system has a + that corresponds to a tier of PPD protection. Of note, different countries use different PA systems. Japan and Taiwan changed their PA system to a 4+ tier system while Korea uses a 3+ tier system.
^ Hay, RJ; Johns, NE; Williams, HC; Bolliger, IW; Dellavalle, RP; Margolis, DJ; Marks, R; Naldi, L; Weinstock, MA; Wulf, SK; Michaud, C; Murray, C; Naghavi, M (October 2013). "The Global Burden of Skin Disease in 2010: An Analysis of the Prevalence and Impact of Skin Conditions". The Journal of Investigative Dermatology. 134 (6): 1527–34. doi:10.1038/jid.2013.446. PMID 24166134.

When you shop in Acne Studios’ physical stores, Acne Studios may collect and store information regarding (i) your clothing and shoe size, (ii) your clothing preferences (such as preferred colors and style) and (iii) other shopping preferences, provided that you have shared this information with Acne Studios’ personnel on a voluntary basis. Acne Studios may also store data regarding your purchases and returns in physical stores (product, size, price and date of purchase) if you have provided your e-mail address to Acne Studios’ personnel. This information is processed for the purpose of enhancing your future purchasing experience with Acne Studios and to provide customized service, which is part of Acne Studios’ membership service. Acne Studios may also use the information regarding your shopping preferences for the purpose of sending out invitations to special events/promotions and profiled marketing offers through e-mail or other messenger services. The legal basis for this is that the processing is necessary in order for us to be able to fulfill our contractual obligations to you under the Membership Policy.
In women, acne can be improved with the use of any combined birth control pill.[88] These medications contain an estrogen and a progestin.[89] They work by decreasing the production of androgen hormones by the ovaries and by decreasing the free and hence biologically active fractions of androgens, resulting in lowered skin production of sebum and consequently reduced acne severity.[10][90] First-generation progestins such as norethindrone and norgestrel have androgenic properties and can worsen acne.[15] Although oral estrogens can decrease IGF-1 levels in some situations and this might be expected to additionally contribute to improvement in acne symptoms,[91][92] combined birth control pills appear to have no effect on IGF-1 levels in fertile women.[89][93] However, cyproterone acetate-containing birth control pills have been reported to decrease total and free IGF-1 levels.[94] Combinations containing third- or fourth-generation progestins including desogestrel, dienogest, drospirenone, or norgestimate, as well as birth control pills containing cyproterone acetate or chlormadinone acetate, are preferred for women with acne due to their stronger antiandrogenic effects.[95][96][97] Studies have shown a 40 to 70% reduction in acne lesions with combined birth control pills.[90] A 2014 review found that antibiotics by mouth appear to be somewhat more effective than birth control pills at decreasing the number of inflammatory acne lesions at three months.[98] However, the two therapies are approximately equal in efficacy at six months for decreasing the number of inflammatory, non-inflammatory, and total acne lesions.[98] The authors of the analysis suggested that birth control pills may be a preferred first-line acne treatment, over oral antibiotics, in certain women due to similar efficacy at six months and a lack of associated antibiotic resistance.[98]

Microneedling is a procedure in which an instrument with multiple rows of tiny needles is rolled over the skin to elicit a wound healing response and stimulate collagen production to reduce the appearance of atrophic acne scars in people with darker skin color.[142] Notable adverse effects of microneedling include postinflammatory hyperpigmentation and tram track scarring (described as discrete slightly raised scars in a linear distribution similar to a tram track). The latter is thought to be primarily attributable to improper technique by the practitioner, including the use of excessive pressure or inappropriately large needles.[142][146]


Isotretinoin (previously known as Accutane) is the most effective form of acne therapy and the only one that can actually result in a cure for your acne. After finishing a course 80 percent of people never see acne again. It works so well because it unclogs pores, kills bacteria, reduces oil production and reduces inflammation. It's taken as a daily pill. Isotretinoin has numerous rare and potential side effects that has made it a controversial choice, but for patients with severe acne there is often no other option. Patients taking isotretinoin must also be on highly effective birth control as the drug can cause birth defects. Isotretinoin can only be taken under close medical supervision.
For UVA protection, a sunscreen with a high UVA protection of PA+++ or higher of PA++++ as recommended, especially to treat PIE. PPD is the UVA equivalent of SPF; use a sunscreen with a minimum of PPD20. The PA+ system has a + that corresponds to a tier of PPD protection. Of note, different countries use different PA systems. Japan and Taiwan changed their PA system to a 4+ tier system while Korea uses a 3+ tier system.
Diet. Studies indicate that certain dietary factors, including skim milk and carbohydrate-rich foods — such as bread, bagels and chips — may worsen acne. Chocolate has long been suspected of making acne worse. A small study of 14 men with acne showed that eating chocolate was related to a worsening of symptoms. Further study is needed to examine why this happens and whether people with acne would benefit from following specific dietary restrictions.
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