With the THORNE - Glycine - Supports Relaxation, THORNE aims to offer quality nutrition that fits your lifestyle.
For intra-workout or recovery support, this BCAA supplement has you covered.
THORNE's BCAA supplement supports muscle recovery and reduces exercise-induced fatigue.
NSF Certified for Sport — tested for banned substances and label accuracy, making it a trusted choice for competitive athletes.
Well-suited for muscle-building goals when paired with consistent training.
Suitable for vegetarians, so you can supplement confidently on a plant-inclusive diet.
Strikes a good balance between quality ingredients and reasonable pricing.
Available at $31.00 — a competitive price point for the US market.
Overall, a worthy contender in the bcaa space from THORNE.
The brand behind this product — their story and what they stand for.
Physician-trusted supplement brand used by elite athletes and partnered with Mayo Clinic. NSF Certified for Sport.
Understand which fitness goals this product is best suited for.
Muscle Gain
Supports muscle growth and recovery when combined with resistance training and a protein-rich diet.
Track how the price has changed over the last 90 days on Amazon.com.
Step-by-step usage instructions so you get the most out of every serving.
Mix 1 scoop with 400–500ml of cold water.
Sip during your workout (intra-workout) or immediately after training.
Can also be taken between meals on rest days for recovery support.
If you already consume enough protein (1.6–2g/kg body weight), BCAAs may offer diminishing returns.
See how this product compares to similar options in its category.
| This Product | Optimum Nutrition | Nutricost | Nature's Trove | |
|---|---|---|---|---|
| Price | $31.00 | $49.99 | $15.95 | $9.98 |
| Per Serving | - | - | - | - |
| Servings | — | — | — | — |
| Lab Tested | ✓ | ✓ | ✓ | ✗ |
| Rating | 4.6 ★ | 4.6 ★ | 4.6 ★ | 4.6 ★ |
Common questions about this product — answered clearly and honestly.
Yes, this product is vegetarian-friendly. It does not contain any non-vegetarian ingredients.
Yes, this product has been lab tested by NSF Certified for Sport. Third-party lab testing verifies that the product contains what the label claims, giving you confidence in its quality and purity.
Optimum Nutrition
Optimum Nutrition Amino Energy - Pre Workout with Green Tea, BCAA, Amino Acids, Keto Friendly, Green Coffee Extract, Energy Powder - Concord Grape, 65 Servings (Packaging May Vary)
Nutricost
Nutricost N-Acetyl L-Cysteine (NAC) 600mg, 180 Capsules - Non-GMO, Gluten Free
Nature's Trove
Nature's Trove L-Theanine 200mg 120 Vegetarian Capsules
NOW Foods
NOW Foods Supplements, (L-Lysine Hydrochloride) 1,000 mg, Double Strength, Amino Acid, 100 Tablets
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