🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 21% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

3 Liquid Softgel(s) Serving Size
40 Servings
Other Combinations Product Type
21% Evidence Coverage

Supplement Facts — Evidence Check

Calories
35 Calorie(s)
Total Fat
2 Gram(s) (3% DV)
Protein
1 Gram(s)
30 mg (273% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg
2 mg (222% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
Medium Chain Triglyceride Oil
900 mg
Pumpkin Seed Oil
900 mg
Nettle root extract
300 mg
Plant Sterols
150 mg
📊 Market median: 450.0mg (390 products) 📚 155 studies (Tier A: 0, B: 63)
This product: 100mg
LJ100
100 mg
Chrysin
99 mg
Gamma Oryzanol
50 mg
BioPerine Complex
6 mg

Other Ingredients

Gelatin Water, Purified Glycerin Soy Lecithin Caramel Annatto Titanium Dioxide St. John's Bread Silicon Dioxide Turmeric Maltodextrin

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (75% of products) Nutrient (48% of products)

Target Groups

Adult Male (18-50 Years)

Product Information

📋 Directions for Use

Directions: (Adult) Take three (3) liquid soft-gels daily with a meal and a full glass of (8oz) of water.

⚠️ Warnings & Precautions

Usage Warnings: Do not use if safety seal is broken. This product contains an ingredient that may affect blood sugar.

Check with your doctor before using this products and engaging in activity, if you are using medication or have any medical conditions, including heart disease or high/low blood pressure. Do not exceed 90 days of continuous use of this product without a two (2) to week break. Do not use if you may become pregnant, are pregnant or nursing.

Not intended for use by persons under 18. Keep out of reach of children.

Contains: soy, tree nuts (coconut, palm kernel)

Do not exceed recommended intake.

🧪 Formulation Notes

Testosterone is a male sex hormone that plays a key role in developing and maintaining masculine characteristics. It is known to promote vitality and well-being and is involved in mood, sex drive, muscle mass and muscle strength. As men age, testosterone levels start to decline. Testosterone UP has also been formulated to enhance performance and vitality in men.

Boost testosterone: this unique formula is designed to boost testosterone levels already within a normal range. At the center of this mechanism is LJ100 Longjack, a patented extract that preliminary research suggests, helps maintain testosterone levels already within the normal range. OptiZinc, a patented form of zinc, is a trace mineral required for numerous vital cell functions, including growth and development as well as sexual health. Ginseng extract is traditionally used as a tonic to revitalize the body.

What makes us different: Liquid Soft-Gels - The nutrients in these easy-to-swallow Liquid Soft-Gels are released fast. Other forms of delivery can contain binders and fillers that may cause stomach upset and offer no nutritional value. Advanced Liquid Soft-Gels provide an optimum delivery system.

Quality Assurance - Irwin Naturals is committed to providing the highest quality products for your health. We employ compliance testing to ensure purity and potency.

Patented BioPerine - Our special BioPerine Complex enhances the bioavailability, absorption and potency of many nutrients.

Advanced pro-male testosterone support formula with physical peak-performance booster

No preservatives added.

Testosterone Up is an advanced pro-male testosterone support formula that includes a physical peak-performance booster that can help men of all ages.

Additional Information

100+ highly specialized products: www.irwinnaturals.com

Pass Quality Tested Guaranteed

Global Responsibility - Over the years we have donated to organizations that support the environment and the health of our children.

Store in a cool, dry place.

Questions: Contact Consumer Affairs 1-800-297-3273 Weekdays 8:00 Am to 5:00pm (PST) Questions@IrwinNaturals.com

Value size!

Full Disclosure Ingredient Panel

Product Details

UPC / SKU 7 10363 58528 0
DSLD Entry Date 2023-06-22
Product Type Other Combinations
Form Softgel Capsule
DSLD ID 292096
Data Updated 2026-04-11

Research Evidence

42 Research Sources
53 Avg Quality Score
20 Meta Analysis
10 Systematic Review
9 Rct
1 Observational
1 Regulatory Source
B Trace Elements and Risk of Immune-Mediated Skin Disease: A Systematic Review and Meta-analysis
Meta Analysis Nutrition reviews 2025
B Blood Trace Element Status in Multiple Sclerosis: a Systematic Review and Meta-analysis
Meta Analysis Biological trace element research 2022
B Micronutrient deficiency risk in long-term enterally fed patients: A systematic review
Systematic Review Clinical nutrition ESPEN 2022
B Essential Trace Element Status in Systemic Lupus Erythematosus: a Meta-analysis Based on Case-Control Studies
Meta Analysis Biological trace element research 2023
B Association between serum copper/zinc ratio and lung cancer: A systematic review with meta-analysis
Meta Analysis Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) 2022
B Vacuolated Marrow Cytopenias from Copper Deficiency to UBA1-Mutant VEXAS: Molecular Landscape, Systematic Review, and Cost-Efficient Diagnostic Algorithm
Systematic Review International journal of molecular sciences 2025
B Parenteral trace element provision: recent clinical research and practical conclusions
Systematic Review European journal of clinical nutrition 2016
B Copper Deficiency: A Frequently Overlooked Complication After MBS-A Systematic Review and Meta-analysis
Meta Analysis Obesity surgery 2025
B Copper in colorectal cancer patients: a systematic review and meta-analysis
Meta Analysis Carcinogenesis 2025
B Zinc deficiency and zinc/copper ratio imbalance in autism spectrum disorder: a reanalysis of six multinational studies
Meta Analysis Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine 2026
View all evidence for Copper →

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