Best Powder Laxatives of 2025

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Powder laxatives are a popular and effective way to promote regular bowel movements and relieve constipation. These products come in a fine powder form that can be mixed with water or other liquids to create a drinkable solution. Powder laxatives work by drawing water into the intestines, which softens stool and makes it easier to pass. They are typically fast-acting and can provide relief in as little as 30 minutes to an hour. Powder laxatives are available over-the-counter and can be found at most drug stores and supermarkets. It is important to follow the recommended dosage instructions carefully to avoid any potential side effects.
At a Glance: Our Top Picks
Top 10 Powder Laxatives
Amazon Basic Care ClearLax Powder for Solution
Amazon Basic Care ClearLax Powder for Solution is an osmotic laxative with the active ingredient Polyethylene Glycol 3350. This unflavored powder relieves occasional constipation and irregularity, generally producing a bowel movement in 1 to 3 days. It's the number one doctor recommended laxative active ingredient and softens the stool by increasing the frequency of bowel movements. The unflavored powder is grit-free, sugar-free, and gluten-free, making it suitable for adults and children 17 years of age and older.
GoodSense ClearLax
GoodSense ClearLax Laxative is a reliable solution for occasional constipation and irregularity. With its active ingredient Polyethylene Glycol 3350, this osmotic laxative increases the frequency of bowel movements and softens the stool. It is an unflavored powder that easily dissolves in any beverage, making it convenient to consume. GoodSense ClearLax Laxative is grit-free, sugar-free, and gluten-free, ensuring a comfortable experience for adults and children aged 17 and above. As the #1 Doctor Recommended Laxative Active Ingredient, it provides effective relief within 1 to 3 days. Say goodbye to irregularity and enjoy the convenience of a reliable laxative with GoodSense ClearLax.
GoodSense ClearLax
ClearLax by GoodSense is an osmotic laxative powder for solution that provides relief from occasional constipation and irregularity. Its active ingredient, Polyethylene Glycol 3350, works by increasing the frequency of bowel movements and softening the stool. This unflavored powder can be dissolved in any beverage, making it convenient and easy to take. ClearLax is sugar-free, gluten-free, and suitable for adults and children aged 17 and older. With ClearLax, you can expect a bowel movement within 1 to 3 days. It is the number 1 doctor-recommended laxative active ingredient, as verified by independent market research. Say goodbye to irregularity with ClearLax!
GoodSense ClearLax Polyethylene Glycol 3350 Powder for Solution
GoodSense ClearLax Polyethylene Glycol 3350 Powder for Solution is an osmotic laxative that increases the frequency of bowel movements, relieves occasional constipation, and softens the stool. The unflavored, sugar-free, and gluten-free powder dissolves in any beverage and produces a bowel movement in 1 to 3 days. The active ingredient, Polyethylene Glycol 3350, is the #1 Doctor Recommended Laxative Active Ingredient.
MiraLAX Laxative Powder for Gentle Constipation Relief
MiraLAX is a gentle and effective laxative recommended by doctors. It unblocks your system naturally and hydrates, softens, and eases stool through the colon with no harsh side effects. The powder dissolves completely in any hot or cold beverage with no taste or grit, making it easy to use. MiraLAX is gluten-free, sugar-free, and preservative-free, and contains 45 doses in a 26.9 ounce bottle.
MiraLAX Laxative Powder for Gentle Constipation Relief, 14 Doses
MiraLAX Laxative Powder is a gentle and effective solution for occasional constipation. It works naturally with water in your body to unblock your system and can be easily dissolved in any beverage without added taste or grit. Unlike other laxatives, it will not cause harsh side effects such as gas, bloating, cramping, and sudden urgency. Each bottle contains 8.3 oz. of polyethylene glycol 3350 and 10 mixing stirrers.
Perrigo Polyethylene Glycol 3350 8.3 Oz Powder
Perrigo Polyethylene Glycol 3350 is an osmotic laxative that softens stool, relieves occasional constipation, and comes in original prescription strength. With 14 daily doses, it's sugar-free and effective for irregularity.
GoodSense ClearLax Powder
GoodSense Laxative Powder is an effective solution for occasional constipation and irregular bowel movements. With its active ingredient, Polyethylene Glycol 3350, this osmotic laxative works by increasing the frequency of your bowel movements and softening your stool, providing relief within 1 to 3 days. It's unflavored and dissolves easily in any beverage, making it convenient to use. Plus, it's grit-free, sugar-free, and gluten-free, suitable for adults and children aged 17 and older. If you're experiencing constipation from GLP-1 medications, this product can help you stay on track with your weight loss journey.
Rite Aid Laxative Powder 3350
Rite Aid Laxative Powder is designed to help you relieve constipation by softening your stools for easier passage through your digestive system within one to three days. This sugar-free and grit-free powder can be mixed with any beverage, allowing you to enjoy a smooth drink without any added sugars. It works as an osmotic laxative, effectively hydrating and softening stools while minimizing uncomfortable side effects like bloating or cramps. With a trusted brand history since 1962, Rite Aid aims to support your health and wellness needs.
MiraLAX Laxative Powder for Gentle Constipation Relief
MiraLAX Laxative Powder is designed to naturally unblock your system by dissolving easily in any beverage without adding any taste or grit. It provides effective relief from occasional constipation without causing any harsh side effects such as gas, bloating, cramping, or sudden urgency. Each pack comes with 10 single doses of polyethylene glycol 3350 and 10 mixing stirrers.
Frequently Asked Questions (FAQs)
1. How long does it take for a laxative powder to work?
Some laxatives work quickly, within 15-30 minutes, and some take one or two days to work. You should drink plenty of fluid when you are taking laxatives (8-10 cups per day). Laxatives are usually taken for a few days until your bowel movements have returned to normal. A few people need to take them long-term.
2. Is there a powder laxative?
POLYETHYLENE GLYCOL 3350 (pol ee ETH i leen; GLYE col) powder is a laxative used to treat constipation. It increases the amount of water in the stool. Bowel movements become easier and more frequent. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
3. How much powder laxatives should I take?
Adults and children ages 17 and older should take 17 grams of powder. Use the MiraLAX® bottle top to measure 17g by filling to the indicated line in the cap. Mix and dissolve into 4-8 ounces of any beverage (hot, cold or room temperature). For children ages 16 or under, ask a doctor.
4. How fast does MiraLAX powder work?
Bowel movements usually begin within 1 hour of drinking the first dose, but it may take longer for some people. Don't worry if you don't start having bowel movements after drinking the first half of the MiraLAX. Continue to drink liquids and start the second half of the MiraLAX as instructed.
During our powder laxative research, we found 24 powder laxative products and shortlisted 10 quality products. We collected and analyzed 397,525 customer reviews through our big data system to write the powder laxatives list. We found that most customers choose powder laxatives with an average price of $26.11.
The powder laxatives are available for purchase. We have researched hundreds of brands and picked the top brands of powder laxatives, including GoodSense, MiraLAX, Perrigo, Rite Aid. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.