ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2026 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
Castor Oil 650 mg

Castor Oil 650 mg

NOW

#Other
65
Safety70
Efficacy60
Transparency85
Based on Examine, Wikipedia, and 23 other sources

Overview

This product primarily functions as a laxative, leveraging castor oil's well-documented effects on stimulating bowel movements. While Fennel oil is included, it plays a minor role in regulating digestion. The product's effectiveness for constipation relief is directly tied to the castor oil content, although the user may dislike the potential side effects and taste.

The Good

Provides effective relief from occasional constipation.

Castor oil's laxative effect is scientifically supported.

May support digestive regularity through the inclusion of fennel oil.

The Bad

May cause gastrointestinal side effects such as nausea and diarrhea.

Not intended for long-term use.

Can affect the absorption of other oral medications.

Is it for you?

Best For: Individuals seeking occasional relief from constipation

Skip If: Pregnant, breastfeeding, have abdominal pain, or a history of intestinal obstruction.

Ingredients Analysis

Castor Oil

650 mg

Fennel Oil

10 mg

How to Use

Take 1 softgel with 8 oz of water, preferably on an empty stomach, or as directed by a healthcare practitioner.

Frequency:

As needed

Best Time:

Evening

When:

On an empty stomach or with water

Who Should Use This

Best For:

Individuals seeking occasional relief from constipation

Similar Products

Protein Milkshake Vanilla Flavored with other natural flavors by QUEST®

Protein Milkshake Vanilla Flavored with other natural flavors

QUEST®

water infused with grape essence and other natural flavors by hint

water infused with grape essence and other natural flavors

hint

CORE POWER® ELITE Vanilla Flavored with other natural flavors HIGH PROTEIN MILK SHAKE by fairlife®

CORE POWER® ELITE Vanilla Flavored with other natural flavors HIGH PROTEIN MILK SHAKE

fairlife®

fairlife® CORE POWER® High Protein Milk Shake Vanilla Flavored with other natural flavors by fairlife®

fairlife® CORE POWER® High Protein Milk Shake Vanilla Flavored with other natural flavors

fairlife®

ultima REPLENISHER Lemonade Flavored with other natural flavors by ultima REPLENISHER

ultima REPLENISHER Lemonade Flavored with other natural flavors

ultima REPLENISHER

FUSION Strawberry Flavored with Other Natural Flavors by OIKOS

FUSION Strawberry Flavored with Other Natural Flavors

OIKOS