Butylene Glycol

Generally Safe SolventSynthetic

Butylene Glycol is a synthetic solvent used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 3 supplements in the GoodSupp database. Butylene glycol is a synthetic alcohol used as a solvent and humectant.

3 Products use this
Generally Safe Safety rating
Solvent Category
No Natural origin

Safety Verdict: Generally Safe

May cause skin irritation in sensitive individuals.

What is Butylene Glycol?

Butylene glycol is a synthetic alcohol used as a solvent and humectant.

Common Names Butylene Glycol
Type Solvent
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Butylene Glycol used in supplements?

It is used as a solvent, viscosity-decreasing agent, and humectant.

Role in supplements: Solvent — dissolves or extracts active ingredients during manufacturing.

Should you be concerned about Butylene Glycol?

Generally no. Butylene Glycol is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

May cause skin irritation in sensitive individuals.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Butylene Glycol

These 3 highest-scoring supplements in our database use Butylene Glycol.

iHerb Exclusive Self-Care Essentials, Anniversary Collection, 8 Piece Set
iHerb Exclusive Self-Care Essentials, Anniversary Collection, 8 Piece Set
Product 70 Brand N/A
Collagen Peptide
Collagen Peptide
Product 51 Brand N/A
California Gold Nutrition iHerb Favorites, Anniversary Collection, 7 Piece Set
California Gold Nutrition iHerb Favorites, Anniversary Collection, 7 Piece Set
Product 46 Brand N/A
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Frequently Asked Questions
Is Butylene Glycol safe in supplements?

Butylene Glycol is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. May cause skin irritation in sensitive individuals. In GoodSupp's database, 3 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Butylene Glycol and why is it in my supplement?

Butylene glycol is a synthetic alcohol used as a solvent and humectant. It appears in 3 products in the GoodSupp database.

Is Butylene Glycol natural or synthetic?

Butylene Glycol is synthetically produced, meaning it is manufactured through chemical processes rather than directly extracted from natural sources. Synthetic ingredients are extremely common in supplements and are not inherently less safe than natural alternatives. In many cases, synthetic production allows for higher purity and more consistent quality. The FDA regulates both natural and synthetic supplement ingredients under the same safety standards. GoodSupp rates ingredients based on their actual safety data regardless of whether they're natural or synthetic.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.