Malic acid is found in fruits and vegetables and is produced naturally in the body when carbohydrates are converted into energy. While some research suggests that malic acid supplements may help people with certain conditions, high-quality clinical trials are needed.
There's some evidence that malic acid supplements may offer these benefits:
When applied to the skin, malic acid is said to reduce signs of aging, remove dead skin cells, aid in the treatment of acne, and promote skin hydration.
Malic acid is also used to boost sports performance when taken in supplement form. It is sometimes combined with creatine supplements in order to improve the body's absorption of creatine.
The use of a one percent oral malic acid spray has been explored as a treatment for dry mouth. A study published in Depression and Anxiety, for instance, evaluated a one percent malic acid spray compared to a placebo in people with dry mouth resulting from antidepressant use. After two weeks of using the sprays when needed, those using the malic acid spray had improved dry mouth symptoms and increased saliva flow rates.
Dosage and Preparation
There is no standard dose of malic acid that is recommended. Various doses have been used with adults in studies to investigate the treatment of different conditions.
For acne, a cream containing malic acid and arginine glycolate was applied twice daily for 60 days For dry mouth, a mouth spray containing 1 percent malic acid, 10 percent xylitol, and 0.05 percent fluoride was used up to eight times daily for two weeks.
The appropriate dose for you may depend on how you are using the supplement, your age, gender, and medical history. Speak to your healthcare provider for personalized advice.