Mario Badescu for Acne: The Drying Lotion and Its Limits

Mario Badescu's best-known product for acne is its Drying Lotion, a liquid combining sulfur, salicylic acid, calamine and zinc oxide in an alcohol base. It's dabbed onto a single spot with a head to dry it out, and it may help with that, but it's a spot treatment rather than a treatment for acne as a whole. We found no published trial of the product itself, so what we know comes from the evidence on its ingredients. It can also cause dryness and irritation.

Arabic pages barely cover this product, and English reviews are mostly commercial. This article explains its ingredients one by one, who it suits, and when it isn't enough. We have no connection with the manufacturer.

What's in the Drying Lotion?

According to the ingredient list published by retailers, the lotion contains isopropyl alcohol, water, calamine, camphor, sulfur, zinc oxide, talc, glycerin, salicylic acid and titanium dioxide. Formulations sometimes change, so the packaging itself is the most reliable reference. Notably, the concentrations of sulfur and salicylic acid aren't stated on the label, which makes it hard to compare with products where they are.

Ingredient	Expected role	Note
Sulfur	Antibacterial and mildly exfoliating	Strong smell; can be drying
Salicylic acid	Oil-soluble; unblocks pores	Concentration not stated on the label
Calamine and zinc oxide	Soothe and absorb oil	Leave a white or pinkish mark
Isopropyl alcohol	Dries quickly	Irritates dry and sensitive skin
Camphor	Cooling sensation	Can irritate some skin

Sulfur: an old ingredient making a comeback

Sulfur is one of the oldest treatments in dermatology, used for acne, rosacea, seborrhoeic dermatitis, scabies and fungal infections. A 2025 review summarises these uses:

Circular diagram summarising the uses of sulfur and its derivatives in skin conditions such as acne, rosacea, scabies and fungal infections, and its forms such as cream, lotion and gel, the key ingredient in Mario Badescu's acne lotion — Sulfur and its derivatives in dermatology: properties, conditions treated and formulations. Source: Sulfur and Its Derivatives in Dermatology: Insights Into Therapeutic Applications-A Narrative Review, Chen YJ et al., CC BY.

Sulfur is thought to react with an amino acid in skin cells, cysteine, producing hydrogen sulfide, which softens the outer layer of skin and helps it shed, as the same review shows:

Chemical equation of sulfur reacting with cysteine in skin cells to produce hydrogen sulfide, the proposed mechanism of sulfur in Mario Badescu's acne lotion — *The proposed reaction of sulfur with cysteine in keratinocytes. Source: Sulfur and Its Derivatives in Dermatology: Insights Into Therapeutic Applications-A Narrative Review, Chen YJ et al., CC BY.*

The evidence for sulfur in acne is older and weaker than for benzoyl peroxide and retinoids, but it's relatively gentle for people who can't tolerate those. Sulfur products also suit people whose skin is prone to both acne and seborrhoeic dermatitis or rosacea, since it's used for all three.

Salicylic acid: the best-evidenced ingredient in the bottle

Salicylic acid unblocks pores and reduces oil, and it's the most studied of the lotion's ingredients. In a 2025 study of forty-two people with mild to moderate acne, acne severity fell gradually over three weeks of a gel containing salicylic acid:

Chart of average acne severity falling over twenty-one days of a gel containing salicylic acid, one of the ingredients in Mario Badescu's acne lotion — Mean acne severity grade and rate of change from day zero to day twenty-one. Source: Clinical Efficacy of a Salicylic Acid-Containing Gel on Acne Management and Skin Barrier Function: A 21-Day Prospective Study, Liu Y et al., CC BY.

The study had no comparison group, and the gel is a different product from the lotion, so it shows the effect of the ingredient rather than of Mario Badescu specifically. More on this ingredient in Stridex pads.

Who does it suit?

It suits a single inflamed spot with a white head on oily or combination skin, as a spot treatment. It doesn't suit deep, painful spots without a head, widespread closed whiteheads, dry, sensitive or eczema-prone skin, or numerous spots that need a treatment applied to the whole area. If you're getting more than a few spots at a time, a spot treatment is the wrong tool: you're chasing each new spot rather than preventing the next ones.

flowchart TD
  A[An inflamed spot] --> B{Single, with a head at the surface?}
  B -->|Yes| C[Drying lotion as a spot treatment]
  B -->|No| D{Deep and painful, or many spots?}
  D -->|Yes| E[See a dermatologist]
  D -->|No| F[A treatment for the whole area]
  C --> G{Redness or flaking around it?}
  G -->|Yes| H[Stop and moisturise]

How to use it

Don't shake the bottle. Dip a clean cotton bud into the pink sediment at the bottom, dab it onto the spot only after washing your face, leave it overnight, and wash it off in the morning. Don't rub it in, and don't put it on an open spot, broken skin or the whole face. Use a fresh cotton bud each time so you don't contaminate the bottle. If you share a bed or worry about pillowcases, a dark pillowcase or a hydrocolloid patch over the dried lotion helps.

Alternatives for spot treatment

If the lotion doesn't suit you, there are other options for a single spot. A low-strength benzoyl peroxide gel reduces bacteria without causing resistance, and its evidence is stronger than sulfur's, though it can bleach fabrics. Hydrocolloid spot patches protect the spot from touching and squeezing and absorb fluid without drying the surrounding skin, which suits sensitive skin, as explained in pimple patches. A clean warm compress soothes a painful spot. Whatever you choose, the rule is the same: a spot treatment for the spot you have, and a daily treatment for the whole area to prevent new ones.

Side effects and limits

The alcohol, sulfur and camphor can cause dryness, flaking and redness around the spot, which can turn into a dark mark on darker skin. The lotion can also leave a white residue on pillows. Buy it from a reputable source, because counterfeit products are common, and a fake may contain anything. Most importantly, drying one spot doesn't stop others appearing; for prevention you need a daily treatment for the whole area, as covered in inflamed acne.

It's also worth knowing what a spot treatment can't do. It won't fade the dark mark a spot leaves behind, it won't prevent scarring from deep spots, and it won't touch the hormonal and oil-gland drivers of acne. Those need sunscreen, a daily pore-clearing treatment, and sometimes prescription medicines.

mindmap
  root((Drying lotion))
    Ingredients
      Sulfur
      Salicylic acid
      Calamine and zinc
      Alcohol
    Suits
      Single spot with a head
      Oily skin
    Doesn't suit
      Deep spots
      Dry and sensitive skin
      Many spots

Frequently asked questions

Is Mario Badescu good for acne?

Mario Badescu's Drying Lotion contains well-known acne ingredients, chiefly sulfur and salicylic acid, and may help dry out a single spot with a head. But it's a spot treatment rather than a treatment for acne as a whole, and we found no published trial of the product itself.

How do you use Mario Badescu Drying Lotion?

Don't shake it. Dip a cotton bud into the pink sediment at the bottom of the bottle, dab it onto the spot only, leave it overnight and wash it off in the morning. Don't apply it to the whole face or to broken skin, because it contains alcohol and drying ingredients.

What are the side effects of Mario Badescu Drying Lotion?

It can cause dryness, flaking and redness around the spot, especially on dry or sensitive skin, because of the alcohol, sulfur and camphor. It can also leave a white mark that rubs off on pillows. Stop using it if you get itching or strong burning.

Does Mario Badescu work on spots under the skin?

Usually not. The Drying Lotion suits an inflamed spot with a white head at the surface; deep, painful spots without a head and closed whiteheads need a treatment applied to the whole area, and deep ones need a dermatologist.

When to see a clinician

See a dermatologist if spots are deep and painful or numerous, if they leave dark marks or scars, if they haven't improved after several weeks of a suitable routine, or if redness, itching and swelling appear after using any product. A spot treatment eases one spot, but it doesn't treat the cause.