Best Powder Laxatives of 2026

Name: MiraLAX Laxative Powder for Gentle Constipation Relief
Brand: MiraLAX

Bonnie Salem

Last Updated: Jan 16, 2026

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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 1

MiraLAX Laxative Powder for Gentle Constipation Relief

9.9

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#TOP 2

Amazon Basic Care ClearLax Powder for Solution

9.8

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#TOP 3

MiraLAX Laxative Powder for Gentle Constipation Relief, 14 Doses

9.6

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Top 10 Powder Laxatives

#TOP 1

MiraLAX Laxative Powder for Gentle Constipation Relief

MiraLAX
BA56800
White

MiraLAX Laxative Powder, Gentle Constipation Relief for Adults, Stool Softener with PEG 3350, Nonstimulant Laxative, No Harsh Side Effects, Osmotic Laxative, 45 Dose

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.

9.9

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What We Like

Gentle, non-cramping relief
No taste or odor
Easy to mix with drinks
Non-habit forming
Reliable, consistent results

#TOP 2

Amazon Basic Care ClearLax Powder for Solution

Amazon Basic Care
White

Amazon Basic Care ClearLax Polyethylene Glycol 3350 Powder for Solution, Osmotic Laxative, Relieves Occasional Constipation, Unflavored, 1.68 pound (Pack of 1)

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.

9.8

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What We Like

Gentle and effective relief
No taste or odor
Easy to dissolve
Affordable price
Large bottle size

#TOP 3

MiraLAX Laxative Powder for Gentle Constipation Relief, 14 Doses

MiraLAX
White
11 Piece Set

MiraLAX Laxative Powder, Gentle Constipation Relief for Adults, Stool Softener with PEG 3350, Nonstimulant Laxative, No Harsh Side Effects, Includes Stirrer, 14 Dose

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.

9.6

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What We Like

Gentle and effective relief
Dissolves easily in liquids
No taste or grit
No cramping or discomfort
Reliable for colonoscopy prep

#TOP 4

MiraLAX Gentle Constipation Relief Powder

MiraLAX
1897222
White

MiraLAX Gentle Constipation Relief Laxative Powder, Stool Softener with PEG 3350, No Harsh Side Effects, 1 Doctor & OBGYN Recommended, Single Dose Mix-in Pax, Travel Pack, 24 Dose

The MiraLAX Gentle Laxative is designed to help you relieve occasional constipation naturally by using your body's water to soften and ease stool through your colon within 1 to 3 days. Unlike stimulant laxatives that cause immediate bowel movements by triggering nerves, this product offers a gentler approach without harsh side effects like gas, bloating, cramping, or sudden urgency. It's the top choice recommended by doctors and OB-GYNs since 2007, giving you trusted relief. Plus, it's easy to use—just mix one packet in any hot or cold drink and enjoy a tasteless, grit-free solution that fits your lifestyle.

9.6

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What We Like

Gentle, natural relief
No harsh side effects
Doctor recommended
Easy to use
Tasteless and grit-free

#TOP 5

MiraLAX Laxative Powder for Gentle Constipation Relief

MiraLAX
1220049
White

MiraLAX Gentle Constipation Relief Laxative Powder, Stool Softener with PEG 3350, No Harsh Side Effects, Single Dose Mix-In Pax with Mixing Stirrers, Travel Pack, 10 Dose

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.

9.4

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What We Like

Gentle on your system
No added taste or grit
No harsh side effects

#TOP 6

MiraLAX Laxative Powder for Gentle Constipation Relief

MiraLAX
White
40 Count

MiraLAX Laxative Powder for Gentle Constipation Relief for Adults, Stool Softener with PEG 3350, Nonstimulant Laxative, No Harsh Side Effects, Single Dose Mix-in Pax, Travel Pack, 40 Doses

The MiraLAX Laxative Powder includes 40 Mix-In Pax to provide effective, predictable and gentle constipation relief. It is recommended by doctors, gastroenterologists and pharmacists and works naturally with the water in your body to hydrate, ease and soften stool. The powder doesn't cause harsh side effects such as gas, bloating, cramping and sudden urgency. It dissolves easily into any beverage and has no added taste or grit. It's free of gluten, sugar, preservatives and taste.

9.2

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What We Like

Effective, predictable and gentle relief
No harsh side effects
Dissolves easily into any beverage and has no added taste or grit

#TOP 7

GoodSense ClearLax Polyethylene Glycol 3350 Powder for Solution

GoodSense
No Model
White

Good Sense ClearLax, Polyethylene Glycol 3350 Powder for Solution, Osmotic Laxative, 53.7 Oz, Pack of 3

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.

9.1

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What We Like

Increases frequency of bowel movements
Relieves occasional constipation and softens the stool
Unflavored, sugar-free, and gluten-free powder that dissolves in any beverage

#TOP 8

Senokot Laxative Gummies for Occasional Constipation Relief

Senokot
jiu8aa-439
60 Count

Senokot Laxative Gummies, Natural Senna Extract, Gentle, Overnight Relief from Occasional Constipation, Mixed Berry Flavor, 60 Count.

Senokot Laxative Gummies offer a delicious way to relieve occasional constipation. Its 60-count bottle contains chewable gummies that provide gentle overnight relief when taken at bedtime. These gummies contain natural senna leaf extract from senna plants and have a mixed berry flavor with other natural flavors. They are easy to take and provide a great-tasting solution to occasional constipation.

9.0

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What We Like

Easy to take and chewable
Great-tasting mixed berry flavor with other natural flavors
Gentle overnight relief from occasional constipation

#TOP 9

Benefiber On The Go Prebiotic Fiber Powder 72 Sticks

Benefiber
60000000208622

Benefiber On The Go Prebiotic Fiber Supplement Powder for Digestive Health, Daily Fiber, Unflavored - 72 Sticks

The Benefiber Prebiotic Fiber Sticks offer a convenient way to support your digestive health daily. Each package contains 72 unflavored powder sticks that easily dissolve clear in your favorite foods or drinks, making it simple to add fiber without altering taste. This supplement helps nourish the good bacteria naturally found in your gut, promoting better digestion and overall gut health. Made from wheat dextrin, it contains no sugar, gluten, or artificial flavors, making it a clean and gentle option for those 12 years and older. Just mix a stick into a non-carbonated beverage or soft food for easy daily fiber intake.

8.8

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What We Like

Unflavored and dissolves clear
Supports good gut bacteria
Contains no sugar or gluten
Convenient single-serve sticks
Made with wheat dextrin

#TOP 10

MiraLAX 7 Day Powder Laxative

MiraLAX
PPAX1214400
Multi

Miralax 7 Day Powder Laxative, 4.09 oz

The MiraLAX Powder Laxative is designed to help ease constipation by gently relieving your symptoms. It works naturally with your body to help bring back your regular bowel movements, making it easier for you to feel comfortable again. The powder form is easy to mix into any drink, so you can take it without hassle. Its compact size also makes it convenient to keep on hand. This product is a simple and effective way to support your digestive health when you need quick relief.

8.7

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What We Like

Effective constipation relief
Supports natural body rhythm
Easy-to-mix powder
Compact and portable size

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.

Editor's Notes

During our powder laxative research, we found 24 powder laxative products and shortlisted 10 quality products. We collected and analyzed 478,540 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 $17.29.

The powder laxatives are available for purchase. We have researched hundreds of brands and picked the top brands of powder laxatives, including MiraLAX, GoodSense, Senokot, Benefiber. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by

Bonnie Salem

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.