The read.
1 = low concern, 10 = avoid
At a glance.
5/10
Hazard Score
11
Products Found
Allowed
Regulatory Status
4
Known Aliases
Commonly found in
Why you should care.
A synthetic liquid used as a humectant, solvent, and penetration enhancer in cosmetics. While considered safe at low concentrations, it is a skin irritant at higher levels and enhances absorption of other ingredients — including harmful ones.
Top Health Concern
Skin irritant and sensitizer at concentrations above 2%, causing redness, itching, and contact dermatitis.
+2 more health risks documented. Read full analysis
Found in these products.
11 products in our database contain propylene glycol.
The Numbrrrz alternative.
Numbrrrz uses Organic Coconut Oil and Organic Jojoba Oil for natural moisture retention without synthetic humectants or penetration enhancers like propylene glycol.

Day 23 of 50
All 50 ingredients.
A new ingredient is featured every day. Explore the full database below.
7
Petroleum / Petrolatum
6
Mineral Oil
5
Paraffin Wax
8
Parabens
9
Formaldehyde Releasers
4
Phenoxyethanol
8
Methylisothiazolinone
7
BHA (Butylated Hydroxyanisole)
5
BHT (Butylated Hydroxytoluene)
7
Camphor
6
Menthol
7
Phenol
6
Salicylic Acid
9
Phthalates
8
Triclosan
8
Oxybenzone
7
Octinoxate
6
Homosalate
5
Avobenzone
7
Synthetic Fragrance
6
Artificial Colors
4
Dimethicone
Today5
Propylene Glycol
6
Polyethylene Glycol (PEG Compounds)
7
DEA, MEA & TEA (Ethanolamines)
6
Sodium Lauryl Sulfate (SLS)
5
Sodium Laureth Sulfate (SLES)
7
Synthetic Dyes (FD&C in Lip Products)
5
Octisalate
10
Lead
9
Coal Tar
5
Bismuth Oxychloride
7
Talc
8
Carbon Black
4
Lanolin
3
Palm Oil
6
Retinyl Palmitate
9
Hydroquinone
8
Toluene
5
Aluminum Compounds
7
Siloxanes (Cyclic Silicones)
5
Titanium Dioxide (Nanoparticle Form)
8
Benzophenone
8
Methylchloroisothiazolinone (MCI)
9
Quaternium-15
7
Imidazolidinyl Urea
4
EDTA (Ethylenediaminetetraacetic Acid)
6
Triethanolamine (TEA)
5
Ceteareth-20
3
Polybutene