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5 Best Fast Acting Laxatives of 2025

Last Updated - 2025/09/26

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

RestoraLAX

RestoraLAX Powder Stool Softener Laxative - Laxatives For Constipation, Effective Constipation Relief For Adults, No Taste, No Grit, No Gas, No Bloat, No Cramps, No Sudden Urge, 45 Doses, 765 grams

RestoraLAX

CA$28.48

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Main highlights
- Restoring your body's natural rhythm - RestoraLAX is an osmotic laxative containing 100% polyethylene glycol 3350 powder that works with the water in your body to soften and hydrate stool, and increase frequency of bowel movements.
- Improve your gut health - Try RestoraFIBRE daily prebiotic fiber supplements, with naturally sourced inulin, to help support a healthy digestive system and promote regularity.
- Effective relief - RestoraLAX is a gentle laxative that provides effective relief from occasional constipation without causing bloating, gas, cramping and sudden urge.
- Doctor recommended laxative brand - RestoraLAX is the laxative recommended by gastroenterologists and family doctors and is certified by the Canadian Digestive Health Foundation.
- Convenient & easy to use - RestoraLAX easily dissolves in any beverage, hot or cold, and is sugar free, gluten free, has no taste and no grit. Each bottle comes with a convenient single 17g dose measuring cap.
CA$28.48
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SMNutrition

15 Day Colon Cleanse & Detox | Stool Softener & Constipation Relief for Adults | Gut Health Support | Colon Detox Cleanse With Probiotics for Women & Men | Gluten-Free | By SM Nutrition | 30 Capsules

SMNutrition

CA$26.95

More Details
Main highlights
- THE SMNUTRITION DIFFERENCE: 15 Day Colon Detox & Cleanse is Made in Canada, Gluten Intolerance Group Certified, and Third-Party Tested to ensure the highest quality. Every ingredient has been carefully chosen to provide the best support possible.
- SUPPORTS WEIGHT MANAGEMENT: 15 Day Cleanse is packed with Probiotics, which could provide favorable gut flora in the digestive tract to aid gastrointestinal health, bloating relief and weight management.
- POWERFUL FORMULATION: Every capsule of 15-Day Colon Detox & Cleanse contains over 500 mg of a blend consisting of the best colon support ingredients including: Senna Leaf, Cascara Sagrada Bark, Psyllium, Flaxseed, Aloe Vera Gel, L. Acidophilus, Licorice Root, and MCT Oil.
- LET'S GET A MOVE ON: 15-Day Colon Detox & Cleanse contains Senna and Cascara, which are used in herbal medicine as a stimulant laxative to promote bowel movement and short term constipation relief. Other ingredients work as a stool softener to make bowel movements easier.
- CLEANSE & DETOX: Our colon cleanse formula contains powerful yet gentle ingredients to promote the clearing out of buildup from the intestinal lining like a colon broom. This contributes to daily colon cleanse support.*
CA$26.95
3
Best Value

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Dulcolax

DulcoLax Soft Chews, Laxative for Gentle Occasional Constipation Relief For Adults and Kids Ages 12 and Over, Vegan, Stimulant-Free, Gluten-Free Laxatives, Mixed Berry, 30 Count

Dulcolax

CA$12.47

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Main highlights
- Works With Your Body - Contains magnesium hydroxide for constipation and works with the water in your body to promote easy bowel movements, so you can get on with your day
- Gentle Occasional Constipation Relief - Each stimulant-free and gluten-free gentle soft chew laxative contains the active ingredient magnesium hydroxide provide occasional constipation relief
- For Adults and Kids - This product is intended to provide constipation relief for adults and kids 12 years and over
- Fast Acting Constipation Relief - DulcoLax Soft Chews provide a gentle nudge and softens the stools, so you can go comfortably in as little as 30 minutes(1)
- Delicious Mixed Berry Flavor - This 30-count bag of delicious berry flavored fast acting laxative soft chews is great to have on hand for occasional constipation relief
CA$12.47
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Colace

Colace Glycerin Suppositories - Adult | Gentle Fast Acting Relief of Occasional Constipation | 48 Count

Colace

CA$11.94

More Details
Main highlights
- The benefits of suppositories are their ease of use and predictability, giving you control over when and where.
- The benefit of using Colace Glycerin Suppositories is that they often work in as little as 15-30 minutes.
- Lubricating and softening fecal matter helps to prevent hemorrhoids which is caused by straining during a difficult bowel movement.
- Colace Glycerin Suppositories work by dissolving inside the rectum lubricating, irritating and softening fecal matter.
- Colace Glycerin Suppositories provide gentle fast acting relief of occasional constipation and are available for adults and children
CA$11.94
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

LAX-A-DAY

Lax-A-DAY Lax-A-Senna Sennosides Stimulant Laxative | Naturally Sourced Medicinal Ingredients, Fast-Acting, Overnight Relief of Occasionnal Constipation | 110 Tablets

LAX-A-DAY

CA$13.29

More Details
Main highlights
- NATURALLY SOURCED - Lax-A-Senna is made of sennosides, a naturally sourced ingredient.
- Lax-A-Senna is a Proudly Canadian Brand.
- FAST-ACTING - Lax-A Senna is a stimulant laxative that generally works within 6 to 12 hours to help you wake up ready to go!
- CONVENIENT - Lax-A Senna tablets are coated and easy to swallow.
CA$13.29

5 Best Fast Acting Laxatives of 2025

RestoraLAX Powder Stool Softener Laxative - Laxatives For Constipation, Effective Constipation Relief For Adults, No Taste, No Grit, No Gas, No Bloat, No Cramps, No Sudden Urge, 45 Doses, 765 grams

15 Day Colon Cleanse & Detox | Stool Softener & Constipation Relief for Adults | Gut Health Support | Colon Detox Cleanse With Probiotics for Women & Men | Gluten-Free | By SM Nutrition | 30 Capsules

DulcoLax Soft Chews, Laxative for Gentle Occasional Constipation Relief For Adults and Kids Ages 12 and Over, Vegan, Stimulant-Free, Gluten-Free Laxatives, Mixed Berry, 30 Count

Colace Glycerin Suppositories - Adult | Gentle Fast Acting Relief of Occasional Constipation | 48 Count

Lax-A-DAY Lax-A-Senna Sennosides Stimulant Laxative | Naturally Sourced Medicinal Ingredients, Fast-Acting, Overnight Relief of Occasionnal Constipation | 110 Tablets

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