Aluminum Acetate Solution: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Aluminum Acetate Solution?

Aluminum acetate solution, often called Burow’s solution, is a clear water based liquid made when aluminum salts react with acetic acid. The reaction creates aluminum acetate, which is then diluted to a mild strength suitable for skin care. Modern manufacturers usually combine aluminum sulfate or aluminum hydroxide with vinegar grade acetic acid, filter the mixture to remove any grit, adjust the pH for skin compatibility and bottle it under strict quality controls.

The formula traces back to the mid 1800s when German physician Karl August Burow looked for gentle ways to calm skin. His preparation quickly found favor in barbershops and beauty parlors for its pore tightening feel. As the cosmetics industry grew, chemists refined the solution so it could blend well with plant extracts, humectants and light fragrances.

Today you will spot aluminum acetate solution in facial toners, clarifying masks, aftershave splashes, oil control lotions, underarm roll ons and targeted spot treatments. Its water like texture lets brands layer it easily into serums or gels without changing the overall weight of the product.

Aluminum Acetate Solution’s Cosmetic Benefits/Uses

In skin care formulas aluminum acetate solution serves one main purpose: it works as an astringent. By gently contracting the outer layer of skin it helps tighten the look of pores, reduces surface oil and gives a quick fresh feeling. This temporary toning effect can make skin appear smoother and less shiny, which is why the ingredient is popular in products aimed at oily or combination skin types.

Who Can Use Aluminum Acetate Solution

This ingredient suits oily and combination skin best because its astringent action helps reduce surface oil and tighten the look of pores. Normal skin can also enjoy it in moderation. People with very dry or highly sensitive skin might find it too drying or tightening, especially if used often or in high concentrations, so they should proceed with care and look for formulas buffered with soothing agents.

Aluminum acetate solution is mineral based and made from aluminum salts and acetic acid, so it contains no animal derived materials. That makes it an option for vegans and vegetarians as long as the finished product has not been tested on animals.

The ingredient is generally seen as safe for pregnant and breastfeeding women when used topically in over the counter amounts. Still this is not medical advice. Anyone who is expecting or nursing should run any skincare product past a qualified doctor to be on the safe side.

Aluminum acetate does not increase sun sensitivity and can be worn during the day without extra risk of sunburn, though daily sunscreen is always encouraged for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical aluminum acetate solution vary from person to person. The list below covers potential side effects and interactions yet most users will not experience them when the ingredient is properly formulated and used as directed.

  • Dryness or an overly tight feeling on the skin
  • Mild stinging or burning right after application
  • Temporary redness or irritation
  • Contact dermatitis in individuals allergic or sensitive to aluminum compounds
  • Worsening of very dry or eczema prone skin if applied too frequently
  • Increased irritation when layered with other strong astringents or exfoliating acids

If you notice any of these issues stop using the product and seek advice from a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 0 (non comedogenic)
Aluminum acetate is a highly water soluble salt that does not contain oily or waxy residues capable of blocking pores. Once applied it dries down without leaving a film that could trap sebum or dead skin. Because of this clean finish the ingredient is considered non comedogenic and is generally fine for people prone to acne or breakouts. As with any astringent, the overall formula still matters; if the product is loaded with heavy emollients that could change the pore clogging potential.

Summary

Aluminum acetate solution is used in cosmetics mainly as an astringent that momentarily tightens skin, shrinks the appearance of pores and helps reduce surface oil. It does this by causing mild protein precipitation on the outermost skin layer which gives that quick firming sensation. While not a blockbuster ingredient, it holds a steady place in toners, aftershaves and oil control treatments where a light feel is favored.

Topically, aluminum acetate is regarded as very safe when used at the low concentrations found in over the counter products. Side effects are uncommon and usually mild. Still, skin can react unpredictably, so it is wise to patch test any new product containing this solution before applying it more widely.

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