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Blend · Supplement ingredient

Proprietary Blend (Amino Acid/Protein)

Proprietary Blend (Amino Acid/Protein) is listed on 526 U.S. supplement product labels in the NIH DSLD, #333 of 4,614 by label frequency.

526
Products
#333 of 4,614
By frequency

How common is Proprietary Blend (Amino Acid/Protein)?

Number of supplement labels listing Proprietary Blend (Amino Acid/Protein) vs nearby blend ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing Proprietary Blend (Amino Acid/Protein)

Whey Protein Complex Powdered Drink Mix Chocolate
GNC Pro Performance
24 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Whey Protein Complex Powdered Drink Mix Vanilla
GNC Pro Performance
22 ingredients · Multi-Vitamin and Mineral (MVM)
On Market
Wheybolic Chocolate Fudge
GNC AMP Advanced Muscle Performance
35 ingredients · Amino acid/Protein
On Market
Wheybolic Classic Vanilla
GNC AMP Advanced Muscle Performance
29 ingredients · Amino acid/Protein
On Market
Wheybolic Classic Vanilla
GNC AMP Advanced Muscle Performance
27 ingredients · Amino acid/Protein
On Market
Wheybolic Classic Vanilla
GNC AMP Advanced Muscle Performance
25 ingredients · Amino acid/Protein
On Market
Wheybolic Cookies and Cream
GNC AMP Advanced Muscle Performance
36 ingredients · Amino acid/Protein
On Market
Wheybolic Strawberries and Cream
GNC AMP Advanced Muscle Performance
34 ingredients · Amino acid/Protein
On Market
Wheybolic Strawberries and Cream
GNC AMP Advanced Muscle Performance
30 ingredients · Amino acid/Protein
On Market
100% Vegan Protein Powder Vanilla
BioChem Sports
26 ingredients · Other Combinations
Off Market
100% Vegan Protein Vanilla Flavor
Biochem
18 ingredients · Amino acid/Protein
Off Market
100% Vegan Protein Vanilla Flavor
Biochem
18 ingredients · Amino acid/Protein
Off Market
100% Vegan Protein Vanilla Flavor
Biochem
18 ingredients · Amino acid/Protein
Off Market
5-HTP Plus Formula
Douglas Laboratories
7 ingredients · Other Combinations
Off Market
5-HTP Plus Formula
Douglas Laboratories
7 ingredients · Other Combinations
Off Market
Airborne Original Lemon-Lime
Airborne
29 ingredients · Botanical with Nutrients
Off Market
Airborne Original Lemon-Lime
Airborne
29 ingredients · Botanical with Nutrients
Off Market
Airborne Original Very Berry
Airborne
32 ingredients · Botanical with Nutrients
Off Market
Airborne Original Very Berry
Airborne
32 ingredients · Botanical with Nutrients
Off Market
Airborne Original Very Berry
Airborne
32 ingredients · Botanical with Nutrients
Off Market
Airborne Original Very Berry
Airborne
32 ingredients · Botanical with Nutrients
Off Market
Airborne Original Zesty Orange
Airborne
32 ingredients · Botanical with Nutrients
Off Market
Airborne Original Zesty Orange
Airborne
32 ingredients · Botanical with Nutrients
Off Market
All Natural Meal Replacement Shake Vanilla
Ox Nutrition
87 ingredients · Other Combinations
Off Market
Amino Complete
NOW Sports
9 ingredients · Other Combinations
Off Market
Amino Complete
NOW Sports
9 ingredients · Other Combinations
Off Market
Amino Rush BCAA 2:2:1 Fruit Punch
VPX
11 ingredients · Amino acid/Protein
Off Market
Amino Rush BCAA 2:2:1 Wild Grape
VPX
11 ingredients · Amino acid/Protein
Off Market
Amino23 Berry
PS ProSupps
14 ingredients · Amino acid/Protein
Off Market
Amino23 Berry
PS ProSupps
12 ingredients · Amino acid/Protein
Off Market
Amino23 Vanilla
PS ProSupps
11 ingredients · Amino acid/Protein
Off Market
AminoMeal Select Chocolate
Moss Nutrition
55 ingredients · Botanical with Nutrients
Off Market
AminoMeal Select Vanilla
Moss Nutrition
54 ingredients · Botanical with Nutrients
Off Market
Amped ECN NOS Fruit Punch
MET-Rx
20 ingredients · Other Combinations
Off Market
Amplified Creatine XXX Fruit Punch
GNC Pro Performance AMP
31 ingredients · Other Combinations
Off Market
Amplified Creatine XXX Fruit Punch
GNC Pro Performance
31 ingredients · Amino acid/Protein
Off Market
Amplified Creatine XXX Pink Lemonade
GNC Pro Performance
17 ingredients · Other Combinations
Off Market
BCAA Lemon Drop
Sparta Nutrition
22 ingredients · Amino acid/Protein
Off Market
BCAA Peach Mango
Sparta Nutrition
22 ingredients · Amino acid/Protein
Off Market
BCAA Watermelon
Sparta Nutrition
22 ingredients · Amino acid/Protein
Off Market
Best Hyaluronic Acid with Chondroitin Sulfate
Doctor's Best
7 ingredients · Non-Nutrient/Non-Botanical
Off Market
Best Hyaluronic Acid With Chondroitin Sulfate
Doctor's Best
7 ingredients · Non-Nutrient/Non-Botanical
Off Market
BioCell Collagen II With Hyaluronic Acid 1000 mg
The Vitamin Shoppe
9 ingredients · Non-Nutrient/Non-Botanical
Off Market
BioCell Collagen II with Hyaluronic Acid 1000 mg
The Vitamin Shoppe
9 ingredients · Non-Nutrient/Non-Botanical
Off Market
BioCell Collagen II With Hyaluronic Acid 1000 mg
The Vitamin Shoppe
8 ingredients · Non-Nutrient/Non-Botanical
Off Market
BioTrust Low Carb Milk Chocolate
BioTrust
24 ingredients · Amino acid/Protein
Off Market
BrainSustain For Kids Vanilla Delight
XYMOGEN EP
31 ingredients · Other Combinations
Off Market
Breakfast Squares Iced Cinnamon Bun
GNC Total Lean
37 ingredients · Other Combinations
Off Market
C4 Ultimate Shred Pink Lemonade Flavor
Cellucor
32 ingredients · Other Combinations
Off Market
Caffeine-Free Xpand 2x Fruit Punch
Dymatize Nutrition
36 ingredients · Other Combinations
Off Market

Nearby Ingredients in Blend

Other ingredients in the Blend category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Proprietary Blend (Amino Acid/Protein) vs Blend →

Nationwide ingredients with similar DSLD presence

Two peer sets for Proprietary Blend (Amino Acid/Protein): closest on total DSLD label listings (526 here) and closest on distinct brands that list it (131 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about Proprietary Blend (Amino Acid/Protein)

How many supplement products contain Proprietary Blend (Amino Acid/Protein)?
526 supplement product labels in the NIH DSLD currently lists Proprietary Blend (Amino Acid/Protein) as an ingredient. By label frequency it ranks #333 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.