L-Leucine
by SNI Elite Series · capsule · 120 capsules
- Off the market since November 2019 (NIH)
- UPC 8 52263 82006 8
- DSLD label 6495
- Serving 4 capsules; amounts per 1 capsule
- 120 servings
L-Leucine by SNI Elite Series lists 4 ingredients, 4 with an amount per serving of 1 capsule, such as 500 mg of L-leucine ethyl ester hydrochloride, 100 mg of vitamin C, 20 mg of vitamin B6 and 10 mg of piperine. Its current label entered the NIH Dietary Supplement Label Database on March 23, 2012.
What is in L-Leucine?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| L-Leucine Ethyl Ester Hydrochloride | 500 mg | 80% of 2,056 products listing leucine give more (median 2.5 g). | |
| Vitamin Cas Ascorbic Acid | 100 mg | 111%* | 50% of 18,583 products listing vitamin C give more (median 100 mg). |
| Vitamin B6as Pyridoxine Hydrochloride | 20 mg | 1,176%* | Higher than 71% of 15,277 products listing vitamin B6 (median 6 mg). |
| Piperine | 10 mg | Higher than 71% of 203 products listing piperine (median 5 mg). |
* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.
Source: NIH ODS Dietary Supplement Label Database, label 6495 (entered March 23, 2012), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with L-Leucine's, rare ingredients counting for more.
- BCAA 4 HourSNI Hardcore Series · off the market 4 shared, 64% alike
- Piperine Capsules 10 mgNootropics Depot 1 shared, 45% alike
- Piperine Extract PowderZ Natural Foods · off the market 1 shared, 45% alike
- BCAA HyperblendTop Secret Nutrition 2 shared, 42% alike
- Green Tea + Piperine Tablets 500/6 mgNootropics Depot 1 shared, 37% alike
- Supreme Curcumin C3SAN 1 shared, 36% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- SUGGESTED USE:**Take 4 capsules daily.
- Warnings
- Keep out of the reach of children.
- Do not use if tamper-evident seal is broken.
- WARNING: Consult a physician before using this product.
- Storage
- Store in a cool, dry place 15(0)-30(0)C (59(0)-86(0)F).
Source: label statements in DSLD label 6495.
What else is on the label?
Other ingredients: Magnesium Stearate, Di-Calcium Phosphate, Microcrystalline Cellulose, Gelatin.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the USA.
How many labels does L-Leucine have?
One label is on file, entered on March 23, 2012.
- Label 6495 (current) Entered March 23, 2012 · off the market November 20, 2019 · 120 capsules · UPC 8 52263 82006 8
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names SNI(TM) RING OF CONFIDENCE (distributor), Freeport, NY. All SNI Elite Series products.