Ingredient review
Aluminum Dichlorohydrex PEG
INCI: Aluminum Dichlorohydrex PEG
A common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin.
In plain English
Aluminum Dichlorohydrex PEG is a type of aluminum salt used in antiperspirants to block sweat glands temporarily. When applied, it dissolves in sweat and forms a gel-like plug that reduces moisture reaching the skin surface. It is a modified version of aluminum chlorohydrate, often combined with PEG (polyethylene glycol) to improve stability and skin feel.
Quick decision guide
Useful, but context matters
Aluminum Dichlorohydrex PEG can be useful, but watch for some irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Aluminum Dichlorohydrex PEG.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
strongThere is a stronger practical or research basis for the ingredient role described here.
What it is
A synthetic aluminum-based compound designed to reduce perspiration by physically blocking sweat ducts. It is a variant of aluminum chlorohydrate that has been reacted with PEG (polyethylene glycol) to enhance its performance in roll-on and stick antiperspirants.
How it works
When applied to the skin, the aluminum salt dissolves in sweat and forms a temporary gel-like plug inside the sweat duct. This plug physically blocks the release of sweat to the skin's surface. The effect is not permanent—the plug is naturally shed as skin cells exfoliate over time.
Pros
Strong sweat control
Reduces underarm wetness effectively for up to 24 hours, making it a go-to for heavy sweaters.
Clinically tested
Extensively studied and approved by regulators like the FDA for use in over-the-counter antiperspirants.
Cons and cautions
Potential skin irritation
Can cause stinging, redness, or itching, especially if applied right after shaving or on broken skin.
Stain and residue risk
May leave white marks on dark clothing or a sticky film on skin, which some find inconvenient.
Best for
- People looking for strong, long-lasting sweat protection
- Those who do not experience irritation from aluminum-based antiperspirants
Use caution if
- Individuals with sensitive or easily irritated underarm skin
- Anyone who prefers aluminum-free or natural deodorant alternatives
Usage tips
Safety summary
Aluminum Dichlorohydrex PEG is considered safe for topical use in antiperspirants by the FDA and the Cosmetic Ingredient Review panel. However, it can cause skin irritation in some individuals, particularly those with sensitive skin or after shaving. Long-term health concerns about aluminum absorption have not been conclusively proven by scientific evidence.
Research notes
Multiple studies confirm the efficacy of aluminum salts in reducing sweat production. The FDA has reviewed and approved aluminum chlorohydrate and its derivatives as safe and effective antiperspirant ingredients. Research on potential links to breast cancer or Alzheimer's disease has not established a causal relationship, and major health organizations continue to deem them safe for cosmetic use.
Common label clues
- Typical concentration
- 10–25% in over-the-counter antiperspirant products
- Regulatory status
- Approved by the U.S. FDA as an over-the-counter antiperspirant active ingredient at concentrations up to 25%.
- Common uses
- Antiperspirants, Deodorants, Body sprays
- Environmental note
- Aluminum compounds are mined and processed, which has environmental impacts. Some consumers choose aluminum-free options for ecological reasons.
Good to know
- Aluminum Dichlorohydrex PEG is considered safe by the FDA and major health agencies for use in antiperspirants.
- The PEG component helps the ingredient dissolve more evenly in stick and roll-on formulas.
Common questions
What is Aluminum Dichlorohydrex PEG in beauty products?
Aluminum Dichlorohydrex PEG is a type of aluminum salt used in antiperspirants to block sweat glands temporarily. When applied, it dissolves in sweat and forms a gel-like plug that reduces moisture reaching the skin surface. It is a modified version of aluminum chlorohydrate, often combined with PEG (polyethylene glycol) to improve stability and skin feel.
What does Aluminum Dichlorohydrex PEG do in a beauty product?
When applied to the skin, the aluminum salt dissolves in sweat and forms a temporary gel-like plug inside the sweat duct. This plug physically blocks the release of sweat to the skin's surface. The effect is not permanent—the plug is naturally shed as skin cells exfoliate over time.
Is Aluminum Dichlorohydrex PEG safe for most people?
Aluminum Dichlorohydrex PEG is considered safe for topical use in antiperspirants by the FDA and the Cosmetic Ingredient Review panel. However, it can cause skin irritation in some individuals, particularly those with sensitive skin or after shaving. Long-term health concerns about aluminum absorption have not been conclusively proven by scientific evidence.
Who should be careful with Aluminum Dichlorohydrex PEG?
Individuals with sensitive or easily irritated underarm skin Anyone who prefers aluminum-free or natural deodorant alternatives
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.