lactic acid
Lactic acid is an ingredient that's in many prescription and over-the-counter topical skin products. It's an alpha hydroxy acid (AHA), which works by getting rid of dead skin cell buildup. Because lactic acid products made by different manufacturers have different age cutoffs, concentrations, and directions, it's important to follow the instructions on the package. Generally, you can apply lactic acid to the affected skin(s) two times daily. Lactic acid is typically used to relieve dry, scaly skin. Common side effects of this medication are temporary burning and stinging.
What is Lactic acid?
What is Lactic acid used for?
- Moisturizing dry, scaly skin
How Lactic acid works
Lactic acid is an alpha hydroxy acid (AHA). It exfoliates the skin by shedding dead skin cells. It's also thought to trigger the skin to make more collagen. This helps to soften and smooth out the appearance of skin.
Drug facts
Side effects of Lactic acid
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Stinging
- Burning
- Peeling
Less Common Side Effects
- Other skin irritations
Pros and cons of Lactic acid
Pros
- Generally well-tolerated
- Available in many different topical products
- No significant interactions with other medications or supplements
Cons
- Raises risk for sunburn
- Not well-studied in children
- Higher concentration is more effective, but might cause more irritation
Pharmacist tips for Lactic acid
- Different formulations of lactic acid products have different directions. Always read the package labels for instructions and age limits before using lactic acid products.
- Lactic acid can make your skin more sensitive to the sun, which means you might sunburn more easily. This can happen even during the winter and on overcast days. Make sure to avoid sun exposure to the areas where you applied the medication. Wear protective clothing and a wide-brimmed hat, and use a moisturizing sunscreen while you're using lactic acid.
- To help with dry skin while using lactic acid, make sure to stay hydrated and avoid hot water and harsh skin products (e.g., soaps, hand sanitizers). Ask your dermatologist or pharmacist for recommendations on non-irritating, mild cleansers to use.
- You might experience mild stinging, burning, or peeling after applying lactic acid to your skin. This is temporary and should go away after a while. Be careful applying this medication to your face since your skin is more sensitive there. Talk to your dermatologist if side effects don't go away.
- Lactic acid should only be used on the outside of your body (i.e., intact skin). Don't use this medication on cuts, wounds, or burns. Avoid getting lactic acid near or in your eyes, lips, mouth, or nose.
- Store lactic acid up and away and out of children's reach and sight. This prevents them from accidentally swallowing medicine that was left out. If you think that your child might’ve accidentally swallowed lactic acid, call your Poison Control Center at 1-800-222-1222 right away even if you aren't completely sure.
Common questions about Lactic acid
Lactic acid is a type of alpha hydroxy acid (AHA). It works by shedding dead skin cells, which causes your skin to exfoliate. By taking off the buildup of dead skin cells, lactic acid softens and smooths your skin. This can help improve your skin's firmness and smoothness, as well as reduce your fine lines and wrinkles.
Some people experience mild burning or stinging after applying lactic acid. This is more likely if you've sensitive skin. Avoid putting products with lactic acid on skin areas that are more delicate, such as on the face or near the eyes, unless you've checked with your dermatologist first. If your skin gets sore or irritated, especially if it doesn't improve over time, let your dermatologist know. They can talk with you to see if it's safe to continue lactic acid or whether you should consider a different product for your skin.
Lactic acid can make your skin more sensitive to the sun and raise your risk for sunburn. If you're going out, it's best to stay out of direct sunlight. Make sure to apply sunscreen and wear clothing that covers your arms and legs to help prevent sunburns.
Discuss with your obstetrician-gynecologist (OB-GYN) about the benefits and risks of using lactic acid during pregnancy. The safety of this ingredient hasn't been well-studied during pregnancy. But some studies showed that pregnant mothers were able to uselactic acid 2% with no reports of harm to their unborn babies. More research is still needed in this area. But if you're concerned about safety, talk to your OB/GYN or dermatologist about other skin recommendations.
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Risks and warnings for Lactic acid
Lactic acid can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Sunburn
Lactic acid can make your skin more sensitive to sunlight. Wear sunscreen and protective clothing when going out. Avoid prolonged sun exposure and tanning beds.
Use only on your skin
Lactic acid should only be used on your skin. Don’t put it in your eyes, nose, mouth, or ears. If you think that your child might’ve accidentally swallowed this medication, call your Poison Control Center at 1-800-222-1222 immediately.
Lactic acid dosage
Typical dosage for Lactic acid
Lactic acid products made by different manufacturers might have different concentrations, directions, and age-cutoffs. To make sure you're using this medication correctly, follow the specific product instructions on the package or talk with your dermatologist about how to use it. In general:
- Lactic acid lotion: Apply thoroughly to the affected area(s) 2 times daily.
What are alternatives to Lactic acid?
