Considerations: Side effects are generally mild and short lived. Most common, in 1-5% of people are itching, burning, stinging, and tingling. Other side effects were reported in less than 1% of people. There have been a few reports from darker skinned people of lightening of the skin. Azelaic acid has not been well studied in people with dark complexions.1
The use of antimicrobial peptides against P. acnes is under investigation as a treatment for acne to overcoming antibiotic resistance.[10] In 2007, the first genome sequencing of a P. acnes bacteriophage (PA6) was reported. The authors proposed applying this research toward development of bacteriophage therapy as an acne treatment in order to overcome the problems associated with long-term antibiotic therapy such as bacterial resistance.[178] Oral and topical probiotics are also being evaluated as treatments for acne.[179] Probiotics have been hypothesized to have therapeutic effects for those affected by acne due to their ability to decrease skin inflammation and improve skin moisture by increasing the skin's ceramide content.[179] As of 2014, studies examining the effects of probiotics on acne in humans were limited.[179]
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The relationship between diet and acne is unclear, as there is no high-quality evidence that establishes any definitive link between them.[51] High-glycemic-load diets have been found to have different degrees of effect on acne severity.[7][52][53] Multiple randomized controlled trials and nonrandomized studies have found a lower-glycemic-load diet to be effective in reducing acne.[52] There is weak observational evidence suggesting that dairy milk consumption is positively associated with a higher frequency and severity of acne.[50][51][52][54][55] Milk contains whey protein and hormones such as bovine IGF-1 and precursors of dihydrotestosterone.[52] These components are hypothesized to promote the effects of insulin and IGF-1 and thereby increase the production of androgen hormones, sebum, and promote the formation of comedones.[52][56] Available evidence does not support a link between eating chocolate or salt and acne severity.[51][54] Chocolate does contain varying amounts of sugar, which can lead to a high glycemic load, and it can be made with or without milk. Few studies have examined the relationship between obesity and acne.[2] Vitamin B12 may trigger skin outbreaks similar to acne (acneiform eruptions), or worsen existing acne, when taken in doses exceeding the recommended daily intake.[57] Eating greasy foods does not increase acne nor make it worse.[58][59] One review linked a Western pattern diet, high in simple carbohydrates, milk and dairy products, and trans fats and saturated fats, along with a low omega-3 fatty acids, with acne.[56]
Alternative and integrative medicine approaches used in the treatment of acne include fish oil, brewer's yeast, probiotics, oral zinc and topical tea tree oil. More research is needed to establish the potential effectiveness and long-term safety of these and other integrative approaches, such as biofeedback and traditional Chinese medicine. Talk with your doctor about the pros and cons of specific treatments before you try them.
^ White, Stephen D.; Bordeau, Patrick B.; Blumstein, Philippe; Ibisch, Catherine; GuaguÈre, Eric; Denerolle, Philippe; Carlotti, Didier N.; Scott, Katherine V. (1 September 1997). "Feline acne and results of treatment with mupirocin in an open clinical trial: 25 cases (1994–96)". Veterinary Dermatology. 8 (3): 157–164. doi:10.1046/j.1365-3164.1997.d01-16.x. ISSN 1365-3164.
Ask any dermatologist for advice on how you can reduce the chances of breakouts, and they’re most likely going to mention taking probiotics as one of their top tips. This facial cleanser, infused with tea tree oil, willow bark and yogurt, targets irritation-causing bacteria while controlling oil production. It also features a biocomplex of vitamins A, C and E, coenzyme Q10 and antioxidants that diminish wrinkles and other visible signs of aging.

Although the late stages of pregnancy are associated with an increase in sebaceous gland activity in the skin, pregnancy has not been reliably associated with worsened acne severity.[137] In general, topically applied medications are considered the first-line approach to acne treatment during pregnancy, as they have little systemic absorption and are therefore unlikely to harm a developing fetus.[137] Highly recommended therapies include topically applied benzoyl peroxide (category C) and azelaic acid (category B).[137] Salicylic acid carries a category C safety rating due to higher systemic absorption (9–25%), and an association between the use of anti-inflammatory medications in the third trimester and adverse effects to the developing fetus including too little amniotic fluid in the uterus and early closure of the babies' ductus arteriosus blood vessel.[46][137] Prolonged use of salicylic acid over significant areas of the skin or under occlusive dressings is not recommended as these methods increase systemic absorption and the potential for fetal harm.[137] Tretinoin (category C) and adapalene (category C) are very poorly absorbed, but certain studies have suggested teratogenic effects in the first trimester.[137] Due to persistent safety concerns, topical retinoids are not recommended for use during pregnancy.[138] In studies examining the effects of topical retinoids during pregnancy, fetal harm has not been seen in the second and third trimesters.[137] Retinoids contraindicated for use during pregnancy include the topical retinoid tazarotene, and oral retinoids isotretinoin and acitretin (all category X).[137] Spironolactone is relatively contraindicated for use during pregnancy due to its antiandrogen effects.[1] Finasteride is not recommended as it is highly teratogenic.[1]
Thanks to its special MicroClear technology, Neutrogena Oil-Free Acne and Redness Facial Cleanser helps boost the delivery of active ingredient salicylic acid, in order to help reduce the appearance of acne. The inclusion of aloe and chamomile help to calm irritation while visibly reducing facial redness, a source of emotional stress for many acne sufferers.
Medical conditions that commonly cause a high-androgen state, such as polycystic ovary syndrome, congenital adrenal hyperplasia, and androgen-secreting tumors, can cause acne in affected individuals.[44][45] Conversely, people who lack androgenic hormones or are insensitive to the effects of androgens rarely have acne.[44] An increase in androgen and oily sebum synthesis may be seen during pregnancy.[45][46] Acne can be a side effect of testosterone replacement therapy or of anabolic steroid use.[1][47] Over-the-counter bodybuilding and dietary supplements are commonly found to contain illegally added anabolic steroids.[1][48]
Misperceptions about acne's causative and aggravating factors are common, and those affected by it are often blamed for their condition.[176] Such blame can worsen the affected person's sense of self-esteem.[176] Until the 20th century, even among dermatologists, the list of causes was believed to include excessive sexual thoughts and masturbation.[165] Dermatology's association with sexually transmitted infections, especially syphilis, contributed to the stigma.[165]
Salicylic acid is a topically applied beta-hydroxy acid that stops bacteria from reproducing and has keratolytic properties.[132][133] It opens obstructed skin pores and promotes shedding of epithelial skin cells.[132] Salicylic acid is known to be less effective than retinoid therapy.[19] Dry skin is the most commonly seen side effect with topical application, though darkening of the skin has been observed in individuals with darker skin types.[1]

Oral antibiotics are recommended for no longer than three months as antibiotic courses exceeding this duration are associated with the development of antibiotic resistance and show no clear benefit over shorter courses.[87] Furthermore, if long-term oral antibiotics beyond three months are thought to be necessary, it is recommended that benzoyl peroxide and/or a retinoid be used at the same time to limit the risk of P. acnes developing antibiotic resistance.[87]


If you’re looking for a hormonal solution to your acne but don’t want to take a combined oral contraceptive, spironolactone may be the answer. This oral medication is a potassium-sparing diuretic originally designed to treat high blood pressure, but is now also used to treat acne. It mainly functions by reducing sebum production, leading to less acne formation13. If you are able to get pregnant, you don’t necessarily need to take a combined oral contraceptive, but you will want to use some form of birth control since spironolactone, like Accutane, is a well-known teratogen and is known for causing birth defects.
The Anti-Redness Exfoliating Solution is mostly water, but its 2 percent salicylic acid is enough to eat through oil and remove the dead skin cells clogging your pores — and it boasts a higher concentration than nearly every other kit we looked at. Sodium hyaluronate, the super-moisturizing humectant we fell in love with in our review on the Best Face Moisturizer, also caught our eye sitting smack dab in the middle of the ingredients list.
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Accutane (isotretinoin) has a mixed reputation, but among dermatologists it’s the finisher for patients with severe acne. “If you have an acne patient that doesn’t respond to anything, [Accutane] can really be a game changer,” board-certified dermatologist Adam Friedman tells SELF. Accutane is an oral retinoid, and it has all the same benefits of a topical retinol but is even more effective.
It's a common misconception that those with oily skin shouldn't moisturize. Be sure you're treating your entire face to a full routine and not solely relying on spot treatments to battle your breakouts. If your acne comes with a side of oil, this is your best bet for a daily moisturizer. It contains panadoxine, a vitamin B6 derivative that improves skin’s overall healthy balance by visually minimizing pore size and shine.

Antiandrogens such as cyproterone acetate and spironolactone have been used successfully to treat acne, especially in women with signs of excessive androgen production such as increased hairiness or skin production of sebum, or baldness.[10][46] Spironolactone is an effective treatment for acne in adult women, but unlike combined birth control pills, is not approved by the United States Food and Drug Administration for this purpose.[1][35][100] The medication is primarily used as an aldosterone antagonist and is thought to be a useful acne treatment due to its ability to additionally block the androgen receptor at higher doses.[35] Alone or in combination with a birth control pill, spironolactone has shown a 33 to 85% reduction in acne lesions in women.[91] The effectiveness of spironolactone for acne appears to be dose-dependent.[91] High-dose cyproterone acetate alone has been found to decrease symptoms of acne in women by 75 to 90% within 3 months.[101] It is usually combined with an estrogen to avoid menstrual irregularities and estrogen deficiency.[102] The medication has also been found to be effective in the treatment of acne in males, with one study finding that a high dosage reduced inflammatory acne lesions by 73%.[103][104] However, the side effects of cyproterone acetate in males, such as gynecomastia, sexual dysfunction, and decreased bone mineral density, make its use for acne in this sex impractical in most cases.[103][104][105] Hormonal therapies should not be used to treat acne during pregnancy or lactation as they have been associated with birth disorders such as hypospadias, and feminization of the male babies.[46] In addition, women who are sexually active and who can or may become pregnant should use an effective method of contraception to prevent pregnancy while taking an antiandrogen.[106] Antiandrogens are often combined with birth control pills for this reason, which can result in additive efficacy.[35][107]
Pimples are raised red spots with a white center that develop when blocked hair follicles become inflamed or infected with bacteria. Blockages and inflammation that develop deep inside hair follicles produce cystlike lumps beneath the surface of your skin. Other pores in your skin, which are the openings of the sweat glands, aren't usually involved in acne.
This top-of-line cleanser is one that really works amazingly for normal, combination and oily skin types. It’s a foaming face wash with 3% sulfur that makes your skin visibly clearer without drying it out. It removes blemishes, unclogs pores, draws out impurities all while calming redness and reducing excess sebum production. The sulfur in it helps to prevent future breakouts and tames even the worst acne breakouts.
The approach to acne treatment underwent significant changes during the twentieth century. Retinoids were introduced as a medical treatment for acne in 1943.[83] Benzoyl peroxide was first proposed as a treatment in 1958 and has been routinely used for this purpose since the 1960s.[167] Acne treatment was modified in the 1950s with the introduction of oral tetracycline antibiotics (such as minocycline). These reinforced the idea amongst dermatologists that bacterial growth on the skin plays an important role in causing acne.[163] Subsequently, in the 1970s tretinoin (original trade name Retin A) was found to be an effective treatment.[168] The development of oral isotretinoin (sold as Accutane and Roaccutane) followed in 1980.[169] After its introduction in the United States it was recognized as a medication highly likely to cause birth defects if taken during pregnancy. In the United States, more than 2,000 women became pregnant while taking isotretinoin between 1982 and 2003, with most pregnancies ending in abortion or miscarriage. About 160 babies were born with birth defects.[170][171]

Retinol: Retinol is simply another word for vitamin A, sort of like how we call vitamin B7 “biotin.” It’s important that our bodies get systemic vitamin A through our diet for good vision, a strong immune system, and general organ function, but some research suggests that vitamin A could have a positive impact on the skin when applied to it directly. The problem is, regular retinol doesn’t actually do much for acne. That’s because the retinoic acid found in retinol isn’t always activated when left to its own devices. We typically have to activate the retinoic acid synthetically through the creation of various medications.
Every expert we spoke with said the most critical part of combating acne is combating it every day. “The only way to make any medication work is to use it on a daily basis,” says Dr. Green. Fitz Patrick emphasizes that it really comes down to what you can maintain for the long term: “Kits are great because they take out all the guesswork -- you just follow the instructions. But if four steps is going to be too many for you to keep up week after week, you’ll be better off finding one that has fewer treatments.”
Acne and stress aren’t connected. FALSE. Scientific studies have shown the opposite to be true. Students with acne were examined before and after major exams at school, and their acne got worse when they experienced stress before exams. It is a double-edged sword. Acne can cause stress, but it can also get worse with stress. Stress hormones such as cortisol can overstimulate the oil glands in your skin. And we already know that oil, bacteria and dead skin cells are what really cause acne. So try to keep away from stressors while you try to get your skin healthier.
Protect your skin. Skin care doesn't end when you leave your bathroom. Wear a noncomedogenic (non-pore clogging) sunscreen with an SPF of 30 or more that offers both UVA and UVB protection to shield your sensitive skin against the sun's harsh rays. A water- or light liquid-based sunscreen is best for acne-prone skin. Limit your time in the sun, especially between the hours of 10 a.m. and 2 p.m. While outside, wear a hat with at least a 2-inch brim and clothing to cover exposed skin.
All acne is not, actually, created equal. This makes perfect sense, seeing as there are so many factors — i.e. hygiene, hormones, and genetics — that can both lead to and exacerbate your breakouts. But knowledge is power, and just knowing that there are different types, and that each kind requires its own plan of attack, puts you ahead of the clear-skin curve. Once you figure out what you're working with, it gets far easier to treat. Here, your ultimate guide to identifying, and then taking down, every type of acne out there, according to dermatologists. Find out how to identify and deal with the different kinds of acne, including blackheads, whiteheads, blind pimples, and cystic zits.

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