In 2007, a study published in the American Journal of Clinical Nutrition found that glycemic load can greatly affects acne. 43 males with acne, aged 15 to 25, were separated into two groups. For twelve weeks, one group ate a diet that was 25 percent protein and 45 percent low-glycemic carbohydrates. The other group ate carbs without any control of glycemic index, resulting in a higher glycemic diet. At the end of the study, the acne had decreased in the low-glycemic group by almost twice the rate of the high-glycemic group! (17)
Shah often recommends over-the-counter retinols or prescription retinoids to her acne-prone patients. “I find that compared to other treatments they are beneficial for not just treating acne but also preventing new acne from forming as they help prevent that initial stage of the follicle getting clogged,” she says. “They can also help with some of the post acne [problems] such as hyperpigmentation.” But keep in mind if you have sensitive skin (or eczema or rosacea), a prescription retinoid might be too strong an option. However, your dermatologist can recommend an over-the-counter retinol with a low concentration (0.1 to 0.25 percent), which might be better tolerated. Retinol also isn’t a quick fix. It takes time to see results, and it’s something you’ll have to keep using to maintain its benefits. Shah also mentions that retinol plays well with other acne treatments on the list. "Retinol can be combined with other over-the-counter or prescription medications such as benzoyl peroxide, topical antibiotics, and oral medications. The right combination depends on the severity of the acne and your skin type."
Considerations: Cigarette smoking with oral contraceptive use increases the risk of serious heart disease.2 There are many negative side effects and positive side effects to taking birth control pills for acne. Talk to your doctor to decide if it is right for you.1-3 While it is a widely held belief, evidence does not show a correlation between pregnancy rates and concurrent administration of birth control pills and oral antibiotics. [With the exception of anti-tuberculosis drugs like rifampin.]
However, unlike the previously discussed treatment options, gender plays a role in how effective dapsone will be. Research has shown11 that female patients who use it get a much better response than male patients. It’s also a slow-working treatment. Studies among adolescents have shown that it is very effective, but it may take up to 12 weeks for improvements to show up, with more improvements taking place with continued use.
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.