PEG-30 (Polyethylene Glycol 30)

Also known as: Polyethylene Glycol 30, PEG-30, Macrogol 30

Evidence under review. — Not yet rated

Synthetic polymer used as a laxative or excipient. Limited published research as a standalone supplement.

What it does

PEG-30 is a synthetic water-soluble polymer in the polyethylene glycol family. In medical and pharmaceutical contexts, polyethylene glycols (like PEG 3350) are well-known osmotic laxatives that...
Evidence quality

Evidence base hasn't been formally rated yet. See research below.
Clinical dose

No established dose

What the Science Says

PEG-30 is a synthetic water-soluble polymer in the polyethylene glycol family. In medical and pharmaceutical contexts, polyethylene glycols (like PEG 3350) are well-known osmotic laxatives that draw water into the colon to soften stool and ease bowel movements. However, PEG-30 specifically — referring to a low-molecular-weight variant — is more commonly used as an inactive ingredient (excipient) in cosmetics and pharmaceutical formulations rather than as an active supplement ingredient. No clinical research papers were provided to support specific health claims for PEG-30 as a dietary supplement.

What It Doesn't Do

Not proven to treat chronic digestive conditions on its own. No evidence it detoxifies the body. Not a nutrient your body needs. Don't confuse it with PEG 3350 (MiraLAX) — they are different compounds with different uses. No evidence it supports weight loss, immunity, or any other common supplement marketing claims.

Absorption & Bioavailability

Unknown — PEG-30 is generally considered poorly absorbed by the gut, which is why related compounds work as osmotic laxatives. No absorption data from provided studies.

Red Flags to Watch For

PEG-30 is primarily an industrial/cosmetic excipient — its presence in a supplement may indicate it is a filler or carrier, not an active ingredient.
No clinical trials or safety studies were provided for PEG-30 as a dietary supplement ingredient.
Polyethylene glycols can cause allergic reactions in sensitive individuals, including anaphylaxis in rare cases.
Products listing PEG-30 as a key active ingredient are likely making unsupported marketing claims — no published evidence backs this use.
Confusion with pharmaceutical-grade PEG laxatives (e.g., PEG 3350) may be used to mislead consumers about efficacy.

Frequently Asked Questions

What does PEG-30 (Polyethylene Glycol 30) do?

Synthetic polymer used as a laxative or excipient. Limited published research as a standalone supplement.

What is the effective dose of PEG-30 (Polyethylene Glycol 30)?

No established dose

Is PEG-30 (Polyethylene Glycol 30) safe?

PEG-30 is primarily an industrial/cosmetic excipient — its presence in a supplement may indicate it is a filler or carrier, not an active ingredient.

What doesn't PEG-30 (Polyethylene Glycol 30) do?

Not proven to treat chronic digestive conditions on its own.

Research Sources

General knowledge — no research papers were provided for this ingredient.

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25