Key Health Benefits

Use Case	Evidence Summary	PubMed Link
Muscle Protein Synthesis Activation	L-Leucine is a potent activator of the mTOR pathway, which plays a crucial role in initiating muscle protein synthesis. Studies have shown that leucine supplementation can stimulate muscle protein synthesis, especially when combined with resistance exercise, leading to muscle growth and recovery.	PubMed
Prevention of Muscle Loss in Aging	In elderly individuals, leucine supplementation has been found to enhance muscle protein synthesis rates, helping to counteract age-related muscle loss (sarcopenia). This suggests that leucine can be beneficial in preserving lean muscle mass in older adults.	PubMed
Enhanced Exercise Performance	Supplementation with L-Leucine has been associated with improved endurance performance and upper body power in athletes. A study involving outrigger canoeists demonstrated that six weeks of leucine supplementation led to significant improvements in rowing time and perceived exertion.	PubMed
Improved Recovery Post-Exercise	Leucine, when co-ingested with protein and carbohydrates after physical activity, has been found to improve whole-body protein balance and stimulate muscle protein synthesis, aiding in recovery. This effect is observed in both young and elderly individuals.	PubMed

Dosage Recommendation

Goal	Recommended Capsules per Day
Muscle Growth & Recovery	2 capsules daily (providing 1,000 mg L-Leucine), taken post-workout with a protein source
Prevention of Muscle Loss (Aging)	2 capsules daily, preferably with meals to enhance muscle protein synthesis
Enhanced Exercise Performance	2 capsules daily, taken 30 minutes before exercise
General Health Maintenance	1 capsule daily, with or without food

Supplement Facts

NUTRITIONAL INFORMATION
Serving Size: 1 veg. Capsule
	Amt. per Serving	% RDA Men	% RDA Women
L-Leucine	1000 mg	39.44	46.62
Ingredients: L-Leucine, Bulking Agent (INS 460 (i)), Anticaking Agent (INS 341(iii)) & Vegetable Capsule Shell (HPMC) (INS 464)

When Will I See Results?

Goal	Expected Timeline
Muscle Protein Synthesis	Immediate activation post-ingestion, especially when combined with resistance training
Muscle Mass Gain	Noticeable improvements within 8–12 weeks of consistent supplementation and exercise
Enhanced Performance	Improvements in endurance and power observed after 4–6 weeks of regular use
Prevention of Muscle Loss	Benefits seen over a period of 12 weeks, particularly in older adults

How to Maximize Results

Goal	Synergistic Stack / Habit
Muscle Growth	Combine with whey protein and resistance training for optimal hypertrophy
Recovery	Pair with BCAAs and adequate carbohydrate intake post-exercise
Performance Enhancement	Integrate with creatine and beta-alanine supplementation
Muscle Preservation (Aging)	Ensure sufficient overall protein intake and engage in regular physical activity

What to Avoid

Substance / Condition	Why to Avoid	Advice
Excessive Protein Intake	May lead to imbalanced amino acid levels and strain on kidneys	Monitor total protein consumption and consult with a healthcare provider
Inadequate Hydration	Can impair amino acid metabolism and muscle recovery	Maintain adequate fluid intake throughout the day
Sedentary Lifestyle	Limits the effectiveness of leucine in promoting muscle synthesis	Incorporate regular physical activity into your routine
Skipping Meals	May reduce the availability of amino acids for muscle repair	Ensure consistent meal timing with balanced macronutrient intake

Third Party NABL Lab Report

Third Party NABL Lab Report for L-Leucine :

 

Click here to view the report