Polyethylene Glycol 3350 (17 g dose)
MiraLAX and its twins. Osmotic laxative. Active ingredients: Polyethylene glycol 3350 17 g.
17 options at Costco, Walmart, Amazon, Target, Kroger, Walgreens, CVS. Cheapest: 32¢ per 17 g dose; typical MiraLAX: 90¢ per 17 g dose. Prices are estimates from Oct 2026.
Cheapest options
- Kirkland Signature LaxaClear Polyethylene Glycol 3350 Powder — Costco, 850 g, $15.99 (32¢ per 17 g dose)
- Equate ClearLAX Polyethylene Glycol 3350 Powder — Walmart, 510 g, $10.47 (35¢ per 17 g dose)
- Amazon Basic Care ClearLAX Polyethylene Glycol 3350 Powder — Amazon, 510 g, $10.99 (37¢ per 17 g dose)
- up&up PowderLAX Polyethylene Glycol 3350 Powder — Target, 510 g, $11.99 (40¢ per 17 g dose)
- Kroger GentleLAX Polyethylene Glycol 3350 Powder — Kroger, 510 g, $12.99 (43¢ per 17 g dose)
- MiraLAX Laxative Powder, Unflavored — Walmart, 765 g, $26.97 (60¢ per 17 g dose)
- Walgreens SmoothLAX Polyethylene Glycol 3350 Powder — Walgreens, 510 g, $18.99 (63¢ per 17 g dose)
- MiraLAX Laxative Powder, Unflavored — Walmart, 510 g, $19.97 (67¢ per 17 g dose)
Where to find it
Look for the “Digestive Health” aisle sign.
Good to know
- Store-brand names for the same polyethylene glycol 3350 powder: Equate and Amazon Basic Care ClearLAX, CVS Health PureLAX, Walgreens SmoothLAX, up&up PowderLAX, Kroger GentleLAX and Kirkland Signature LaxaClear.
- Each dose is 17 g of polyethylene glycol 3350 — MiraLAX's 510 g bottle is labeled 30 once-daily doses.
- Kirkland Signature LaxaClear's label lists no inactive ingredients — the powder is polyethylene glycol 3350 alone.