All Supplements
Glycine vs Grape Seed Extract
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Glycine
Grape Seed Extract
Typical Dosage
3-5g daily
150–300 mg daily
Best Form
Powder
Standardised extract (95% proanthocyanidins)
Key Benefits
6
5
Evidence Rating
★★★★
★★★★
Best Time
Evening for sleep benefits; anytime for general health
With meals for optimal absorption
Glycine Benefits
✓Improves sleep quality and sleep onset
✓Supports collagen formation and joint health
✓Enhances cognitive function and memory
✓Reduces muscle wasting and supports muscle recovery
✓Promotes relaxation and reduces anxiety
✓Supports immune function
Grape Seed Extract Benefits
✓Supports cardiovascular health and blood pressure regulation
✓Provides potent antioxidant protection against free radical damage
✓May improve blood flow and vascular endothelial function
✓Supports collagen integrity and skin health
✓May reduce inflammation and support joint health
Can You Take Both Together?
In most cases, Glycine and Grape Seed Extract can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Glycine if your primary goal is: improves sleep quality and sleep onset. Choose Grape Seed Extract if your primary goal is: supports cardiovascular health and blood pressure regulation. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.