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Over-the-counter medicine · no prescription needed

Azelaic acid, niacinamide, salicylic acid, sulfur and zinc oxide

Purpose on the label: Acne treatment

Acne

Official FDA data, not advice

The label text is quoted exactly as the company filed it with the U.S. Food and Drug Administration (FDA), with a link to the official copy. The list of brands comes from the FDA NDC Directory.

This page is not medical advice. Read the label on your package, and ask a pharmacist or doctor if you are not sure a medicine is right for you, for your child, or with your other medicines.

If someone may have taken too much, call Poison Help: 1‑800‑222‑1222. In an emergency, call 911.

Quick answers

What is Azelaic acid, niacinamide, salicylic acid, sulfur and zinc oxide used for?
The Drug Facts label of Acne Buster Salicylic Acid Drying Serum (Guangzhou Senmai Biotechnology Co., Ltd.) lists these uses: Clears Acne & Bumps,Fast Flattens Acne,Fades Acne Scars,Acne Treatment.After cleansing the skin,dip a cotton swab in thisproduct to apply the acne,and form a protective film when theproduct dries through..
Do I need a prescription for Azelaic acid, niacinamide, salicylic acid, sulfur and zinc oxide?
No. The products on this page are sold without a prescription (over the counter).
Is a store brand the same as the name brand?
Products listed together below have the same active ingredients, in the same amount and the same form, as registered with the FDA. Inactive ingredients (such as colors, flavors and fillers) and package sizes can differ. Compare the “Active ingredient” box on both packages, and ask a pharmacist if you are not sure.
Has Azelaic acid, niacinamide, salicylic acid, sulfur and zinc oxide been recalled?
No recall linked to these products appears in the FDA enforcement reports we use.

Drug Facts label

Every over-the-counter medicine must carry a “Drug Facts” box in the same order, set by FDA rules. Below is the label of one product for each common strength and form, quoted word for word. Your own package can differ (for example, children’s products have other directions): always follow the label on your package.

Acne Buster Salicylic Acid Drying Serum · Guangzhou Senmai Biotechnology Co., Ltd.

Azelaic acid 0.024 mg/10 mL · Niacinamide 0.05 mg/10 mL · Salicylic acid 0.018 mg/10 mL · Sulfur 0.03 mg/10 mL · Zinc oxide 0.2 mg/10 mL, liquid (topical)

Active ingredient

ZINC OXIDE .......... 20% ............. Flattens Acne NIACINAMIDE....... 5% ...... Fades Acne Scars COLLOIDAL SULFUR ........3%.......Flattens Acne AZELAIC ACID.............2.4% .........Clears Acne SALICYLIC ACID...........1.8%............ anti-acne

Purpose

Acne treatment

Uses

Clears Acne & Bumps,Fast Flattens Acne,Fades Acne Scars,Acne Treatment.After cleansing the skin,dip a cotton swab in thisproduct to apply the acne,and form a protective film when theproduct dries through.

Warnings

For external use only. Avoid contactwitheyes

Do not use

on damaged or broken skin.

When using this product

CAUTIONS 1. It is recommended to test the product behind the ear beforeuse. If discomfort is felt, do not use.2. If it accidentally enters the eyes, rinse immediately with water.3.

Keep out of reach of children

Do not use

for children under 3 years old.4. Do not expose to direct sunlight and high temperatures.5. This product contains salicylic acid.

Keep out of reach of children

If swallowed,get medical help or contact a Poison Control Center right away.

Directions

DOSAGE Approximately 0.01-0.02 oz each time.

Inactive ingredients

Aqua, Propanediol, Butylene Glycol, Glycerin, Aloe Barbadensis Leaf Juice, Alcohol, Hydrogenated Castor Oil, Cyclodextrin,Diethoxydiglycol, Sodium Hydroxide,Retinol,Quaternium-73, Propylene Glycol,Phenoxyethanol, Ethylhexylglycerin,Hydroxypropyl Cyclodextrin, Hexamidine Diisethionate.

— FDA label of Acne Buster Salicylic Acid Drying Serum, Guangzhou Senmai Biotechnology Co., Ltd., effective May 5, 2026. See the official label on DailyMed →

This page is not medical advice. Read the label on your package, and ask a pharmacist or doctor if you are not sure a medicine is right for you, for your child, or with your other medicines.

Same medicine, other brands

Each group lists the products that have exactly the same active ingredients, in the same amount and form, as registered with the FDA (NDC Directory). A store brand in the same group has the same medicine as the name brand; inactive ingredients, flavors and package sizes can differ. Each product links to its own official label.

Azelaic acid 0.024 mg/10 mL · Niacinamide 0.05 mg/10 mL · Salicylic acid 0.018 mg/10 mL · Sulfur 0.03 mg/10 mL · Zinc oxide 0.2 mg/10 mL · liquid (topical) · 3 products

Drug Facts for this strength and form ↑

Brand or product nameCompany on the labelLabel
Acne Buster Salicylic Acid Drying Serum Guangzhou Senmai Biotechnology Co., Ltd. DailyMed
AOAO Acne Buster Salicylic Acid Drying Serum Guangzhou Senmai Biotechnology Co., Ltd. DailyMed
PEGO Acne Buster Salicylic Acid Drying Serum Guangzhou Senmai Biotechnology Co., Ltd. DailyMed

Companies that sell this medicine

The company named on the package (maker or distributor), as listed in the FDA NDC Directory, with its number of over-the-counter products of this medicine.

  • Guangzhou Senmai Biotechnology Co., Ltd.3 products

Recalls

No recall linked to these products (by their NDC code or label) appears in the FDA enforcement reports.

Sources

  1. Drug labeling (SPL, openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  4. FDA rule for the Drug Facts label (21 CFR 201.66)

Only medicines marketed under FDA rules for nonprescription drugs (an FDA monograph or an FDA approval) are listed. Homeopathic products are not listed: the FDA does not evaluate them for safety or effectiveness.

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