Lactic acid is an alpha-hydroxy acid (AHA) produced through fermentation or chemical synthesis. It is utilized in skincare for its hydrating and exfoliating properties, contributing to smoother, brigh...
Lactic acid is an alpha-hydroxy acid (AHA) produced through fermentation or chemical synthesis. It is utilized in skincare for its hydrating and exfoliating properties, contributing to smoother, brighter skin. It is also used in vaginal health products to maintain a healthy pH. Current research suggests a more nuanced role in energy production during exercise, beyond its historical association with muscle soreness. While generally safe, lactic acid can cause skin irritation and increased sun sensitivity, particularly at higher concentrations. Proper usage and sun protection are crucial.
Key Information
Outside Body Harmful Score
Common Dosage
Dosage varies greatly depending on application. In skincare, concentrations range from low (under 5%) in everyday products to higher (10%+) in professional peels. Vaginal health products also vary greatly. No typical oral dosage as it's not commonly supplemented orally for general health.
Source Type
hybrid
Production Process
Lactic acid is produced through fermentation of carbohydrates by bacteria. It can also be synthesized chemically.
Use Type
Outside BodyPotential Benefits
Enhances cellular energy production by optimizing ATP creation and metabolism, leading to reduced fatigue and increased stamina. This process supports overall vitality and physical performance.
Hydration ensures sufficient body water for optimal function, supporting processes like temperature regulation and nutrient transport. It prevents dehydration and associated symptoms like fatigue and cognitive impairment.
Skin hydration is essential for maintaining skin elasticity, barrier function, and overall appearance. It reduces fine lines, protects against environmental stressors, and improves skin smoothness and suppleness.
Exfoliation removes dead skin cells to improve skin texture, tone, and radiance. It also unclogs pores, prevents acne, and boosts collagen production.
*Lactobacillus* bacteria help maintain a healthy vaginal flora by inhibiting pathogenic organisms, preventing and managing vaginal infections like bacterial vaginosis and yeast infections. Supplementation can occur orally or vaginally.
MSM may decrease muscle soreness and damage after exercise by reducing inflammation and oxidative stress, potentially speeding up recovery. This allows for more frequent and intense training.
Lactic acid exfoliates the skin by breaking down bonds between dead skin cells, revealing smoother and brighter skin. It's a gentler AHA alternative to glycolic acid.
Possible Side Effects
Skin irritation involves symptoms like redness, itching, and rashes due to contact with irritants, allergens, or environmental factors. Severity varies based on the cause, individual sensitivity, and affected area; persistent cases may lead to secondary infections.
Hyperpigmentation is a rare side effect of copper peptide use, potentially causing skin darkening, especially in individuals with darker skin tones due to increased melanin production.
Lactic acid use can increase sun sensitivity due to exfoliation, raising the risk of sunburn and sun damage. Protect skin from the sun when using products with lactic acid.
Scientific Evidence
Studies on AHA efficacy in skincare, research on vaginal microbiome and pH balance, and exercise physiology studies on lactate metabolism.
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