🟢 98/100

This product looks safe

  • Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
  • 41% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)

Label Data

68 Gram(s) Serving Size
24 Servings
Other Combinations Product Type
41% Evidence Coverage

Supplement Facts — Evidence Check

Calories
190 Calorie(s)
Total Fat
Cholesterol
15 mg (5% DV)
Total Carbohydrates
40 Gram(s) (13% DV)
Protein
7 Gram(s) (14% DV)
Vitamin C
60 mg (100% DV)
10 mg (667% DV)
📊 8.3× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 10mg
7.6 mg (447% DV)
📊 5.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 7.6mg
50 mg (250% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 50mg UL 35mg
200 mcg (50% DV)
✅ Within RDA (0.5× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.2mg UL 1.0mg
75 mcg (1250% DV)
📊 31.2× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.075mg
9 mg (92% DV)
✅ 1.8× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 9mg
Calcium
51 mg (5% DV)
65 mg (7% DV)
✅ Within RDA (0.1× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 65mg UL 4000mg
45 mg (11% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 45mg
Sodium
235 mg (10% DV)
SizeOn Blend
63 Gram(s)

Other Ingredients

Malic Acid Citric Acid Silica Natural and Artificial Grape flavor Salt Purple Potato powder Acesulfame Potassium Sucralose

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (96% of products) Structure/Function (80% of products) Nutrient (60% of products) Approved Health (1% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

With meals Pre During Post Between meals

Directions: SizeOn is meant to be taken once per day, on training days while you train, 5 - 6 days per week. Mix one scoop in 20-30 ounces of cold water and sip throughout your workout. Should the need arise, add more water as necessary throughout your workout for proper hydration.

⚠️ Warnings & Precautions

Allergens: Contains ingredients from milk and soy.

Warning: Seek the advice of a health care practitioner before use.

Not suggested for use in children under the age of 18 or in people who have been diagnosed with hypertension, kidney disease, liver disease, metabolic syndrome, diabetes, or neoplastic condition such as cancer or thalassemia.

Not suggested for use in children under the age of 18 or in people who have been diagnosed with hypertension, kidney disease, liver disease, metabolic syndrome, diabetes, or neoplastic condition such as cancer or thalassemia.

Do not use if pregnant or nursing.

Keep out of the reach of children.

Tamper evident: Do not use if seal under cap is broken or missing. Warning: Cancer and reproductive harm - www.P65Warnings.ca.gov

🧪 Formulation Notes

What does SizeOn do? Accelerates protein synthesis & muscle force recovery Increase muscle volume, muscle fiber size, cell volume & plasma amino acid levels Increases power & performance Inhibits muscle protein breakdown Enhances hydration

Includes Cyclic Dextrin infused carbohydrate blend

Ultimate hybrid intra-workout amino acid & creatine formula

Gaspari Nutrition takes sports supplementation to their highest level yet, with SizeOn – the ultimate hybrid intra-workout amino acid & creatine formula. The original SizeOn became known as the "King of Creatines" and by utilizing the latest advances in clinical research, this award winning formula is better than ever! SizeOn contains high quality whey hydrolysate, which is proven by clinical research to absorb even faster than free-form amino acids. SizeOn also boasts a premium creatine formula, high-performance carbohydrates, a high dose of L-Leucine (4g), and many more anabolic-promoting ingredients.

With proper rest and nutrition, Gaspari brings these carefully selected ingredients together for unparalleled increases. SizeOn helps optimize athletic performance, skeletal muscle recovery, explosiveness and most notably, immediate increases in muscle size while you are still training.

4g L-Leucine

Hybrid intra-workout whey hydrolysate creatine formula with carbohydrate matrix

Grape Cooler naturally & artificially flavored

Made in the USA from domestic and international ingredients.

Additional Information

Maximum performance

Store in a cool, dry place.

Product Details

UPC / SKU 6 46511 00524 2
DSLD Entry Date 2020-06-24
Product Type Other Combinations
Form Powder
DSLD ID 228126
Data Updated 2026-04-11

Research Evidence

2 Research Sources
34 Avg Quality Score
1 Rct
D Effect of pantothenic acid and ascorbic acid supplementation on human skin wound healing process. A double-blind, prospective and randomized trial
Rct European surgical research. Europaische chirurgische Forschung. Recherches chirurgicales europeennes 1995
D Pantothenic Acid
View all evidence for Pantothenic Acid →

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