🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 60% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

3 Tablet(s) Serving Size
40 Servings
Botanical with Nutrients Product Type
60% Evidence Coverage

Supplement Facts — Evidence Check

Calcium
525 mg (40% DV)
50 mg (12% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 50mg
5 mg (45% DV)
✅ Within RDA (0.5× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 5mg UL 40mg
📊 Market median: 450.0mg (502 products) 📚 28 studies (Tier A: 0, B: 8)
This product: 600mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 600mg

Other Ingredients

Calcium Carbonate Microcrystalline Cellulose Stearic Acid Croscarmellose Sodium Film Coat Magnesium Stearate Silica

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

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

Product Information

📋 Directions for Use

Directions for Use: As a dietary supplement, take 3 Signature Testosterone Booster tablets daily.

⚠️ Warnings & Precautions

Warnings: Consult your physician before using this product if you're taking any medications or are under a physician's care for a medical condition. Not for use by those under the age of 18 or by women that are pregnant, trying to get pregnant or nursing.

Not for use by those under the age of 18 or by women that are pregnant, trying to get pregnant or nursing.

Contains Milk

🧪 Formulation Notes

Every product is transparent, filler-free, and formulated with effective doses of research-backed ingredients you can trust.

Contains Milk

Additional Information

A signature is a promise. A symbol of your identity. Your mark on the world. Bodybuilding.com was founded on a single promise: Trust. It's who we are and it's in our blood. Our Signature line is built on the same promise. Every product is transparent, filler-free, and formulated with effective doses of research-backed ingredients you can trust. We create the highest quality supplements, so you can focus on leaving a mark of your own.

Manufactured in the USA in a GMP registered facility with domestic and international ingredients.

Promotes anabolic state Supports strength & stamina

Product Details

UPC / SKU 8 53002 00745 0
DSLD Entry Date 2019-10-23
Product Type Botanical with Nutrients
Form Tablet or Pill
DSLD ID 207684
Data Updated 2026-04-11

Research Evidence

849 Research Sources
56 Avg Quality Score
450 Meta Analysis
152 Rct
137 Systematic Review
73 Clinical Trial
11 Regulatory Source
7 Other
7 Guideline
3 Openfda Safety
2 Cochrane Review
2 Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
View all evidence for Electrolytes →

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