Lactic Acid
Indications
Lactic acid is used on the skin and in the genital area:
- Skin creams and lotions: for dry, rough, thickened or scaly skin, such as ichthyosis (fish-scale skin), keratosis pilaris (rough bumps on the arms and thighs) and cracked heels.
- Intimate washes and vaginal gels: to help keep the normal mild acidity of the vaginal area, which supports healthy bacteria and reduces odour.
It is for external use only and must not be swallowed.
How It Works
Lactic acid is an alpha hydroxy acid (AHA), a mild natural acid. On the skin it loosens and removes dead skin cells and helps the skin hold water, so it feels smoother and softer. In the vaginal area it helps keep the pH (acidity level) in the normal range, which supports the protective Lactobacillus bacteria.
Dosage and Administration
- Skin cream or lotion: apply a thin layer to the affected dry skin once or twice a day, or as directed on the pack or by your doctor, and rub in gently. Wash hands after use unless the hands are being treated.
- Intimate wash: use a small amount with water on the external genital area during bathing, then rinse well. Do not use it as a douche inside the vagina unless the product is made for that.
- Vaginal gel: use exactly as directed on the pack or by your doctor.
Interactions
No important interactions with medicines taken by mouth are known. Using it together with other skin products that peel or irritate (such as Salicylic Acid, Tretinoin or Benzoyl Peroxide) on the same area can increase stinging and redness.
Contraindications
- Allergy or sensitivity to lactic acid or any ingredient of the product.
- Do not apply to broken, cut, sunburned or badly inflamed skin.
Side Effects
Mild stinging, burning, redness or itching may occur, especially on sensitive or cracked skin; this usually settles. The treated skin may become more sensitive to sunlight.
Stop using it and get urgent medical help if you have signs of a severe allergic reaction, such as swelling of the face, lips or throat, difficulty breathing, or a widespread rash. Stop and see a doctor if irritation is severe or does not settle, or if vaginal itching, discharge or odour continues.
Pregnancy and Lactation
Lactic acid products used on the skin or as intimate washes are generally considered safe during pregnancy and breastfeeding. Do not apply it to the nipple area before feeding. For vaginal gels in pregnancy, check with your doctor first.
Precautions and Warnings
- For external use only. Avoid contact with the eyes, mouth and inside of the nose; if it gets in the eyes, rinse well with water.
- Use sunscreen and protect treated skin from strong sun.
- Use with care on the face and in young children; ask a doctor before using on babies.
- Vaginal products do not treat infections; see a doctor for unusual discharge, sores or pain.
Overdose
Using too much on the skin can cause irritation; wash it off with water. If swallowed, rinse the mouth, drink some water and get medical advice; seek urgent help if there is pain or difficulty swallowing.
Therapeutic Class
Keratolytic and moisturising agent (alpha hydroxy acid); vaginal pH regulator.
Storage
Store below 30°C in a dry place, away from light and out of the reach of children. Keep the container tightly closed.
Prepared by the Oshud Alo team from standard drug references. For information only; always follow your doctor's advice.
All brands of Lactic Acid