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Irwin Naturals, Optimum-Strength Testosterone UP Pro-GrowtH, 60 Liquid Soft-Gels

Original price $39.43 - Original price $39.43
Original price
$39.43 - $39.43
Current price $39.43
SKU 840081407110
Why Health Central USA?

* Nation-Wide Shipping! 

* Local Dallas delivery coming soon! We are building out the online infrastructure now.

* Quality - We offer the biggest selection of name brand products.

* No Restock Fees - Our competitors charge restock fees because they know you will be returning their inferior products.

* Lowest Price Guaranteed (Must be the exact same item / UPC code at retail price).

* Easy Returns - We even supply the return address label.

* Refunds Go back to the form of payment you used - Our competition gives you store credit because they know you will never use it.

* Longest Warranty Period Available - We encourage you to compare our warranty period to our competitors.

* Flexible Payment Options Including - (Shop Pay, Amazon Pay, PayPal, G Pay, Credit Card, Apple Pay).

* Amazon Pay - You can use your Amazon account for a quick easy checkout & rest assured if something goes wrong you have their backing to make it right.

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* Don't have any money?? No Problem! Use PayPal Credit. Simply choose the PayPal Option during your checkout. Once logged in choose the pay later option.  

* 4.7 out of 5 Star Google Seller Rating / Product Reviews (Don't take chances buying from a store with no reviews). 

* Featured Google Trusted Store Verified Reviews.

* American / English Speaking Customer Service Reps / Domestic Returns.


About Us:

- We specialize in sourcing hard-to-find and high-demand products. Often times these products are experiencing a sudden surge in demand. ( For example, a surge in demand due to a celebrity using a certain product or a social media video with the product that has gone viral.) This oftentimes results in intermittent stock-outs that can happen within minutes of receiving stock.

- Our area of expertise is delivering products within the continental USA.

- We currently fulfill over 23,500 orders each month.

- In addition to shipping and delivering to the entire continental USA, we also try to support our local Dallas community with excellent shipping rates and fast delivery.

At Health Central USA, we are proud to be the largest supplier of high-quality health supplements and vitamins in the United States. Our online store,, offers a wide variety of genuine products that have undergone numerous studies and tests to ensure their high potency. We have over 100,000 products available, including the best brands from around the world. Our goal is to fulfill our customers' daily nutritional and supplement needs with affordable prices and exclusive deals and offers. Whether you're looking for supplements for weight loss, vitamins, protein, iron, magnesium, natural products, hair loss, or Medical, we have you covered. Our customer service team is available 24/7 to assist you with any queries, and all payments are 100% secure. Shop smarter by comparing prices of similar products from different brands and choose what suits you best. With over 500,000 regular customers, Health Central USA is the most trusted online vitamin and supplement store. Empower your body and lead a healthy, fulfilling life with Health Central USA.


  • Boost Endurance
  • Dietary Supplement
  • Quality Tested Pass Guaranteed
  • Highly Specialized Products

Powerful Testosterone Booster that also supports muscle recovery & repair for men of all ages.

Optimum-Strength Testosterone Up Pro-GrowtH was designed to enhance male physiology by delivering a powerful testosterone boost along with targeted extracts and nutrients to support post-work out recovery and key muscle repair and growth mechanisms.

Testosterone Boost: Featuring PrimaVie Shilajit Extract. Traditional Ayurvedic texts describe Shilajit as a Rasayana, or Rejuvinator that has long been used to promote longevity and resilience. Modern research shows that PrimaVie® Shilajit significantly boosts free and total testosterone in healthy men.

Muscle Adaptation & Post Work-Out Recovery Support: KSM-66® Ashwagandha + PrimaVie® Shilajit Extract both deliver powerful performance boosts by supporting muscle adaptations to optimize intra-workout performance and enhance post work-out recovery for superior muscle gains. This formula also delivers Omega-3 dense Fish Oil, and Vitamin D3 to promote a healthy inflammatory response—a critical component to muscle repair and growth. 

Aminos + AstraGin®: This formula features a select combination of amino acids that have been a focus in longevity research and are thought to support key processes in the body. AstraGin® is a proprietary extract that enhances absorption of amino acids for optimized nutritional benefits. 

For desired results, use in conjunction with regular resistance training.

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.

Suggested use

(Adult) On workout days, approximately 60 minutes prior to a workout and away from food intake, consume three (3) Liquid Soft-Gels with a full glass (8oz) of water. Following the workout, take an additional three (3) Liquid Soft-Gels with a full glass (8oz) of water, and away from food intake. On non-workout days, take six (6) Liquid Soft-Gels with a full glass of water and at least 60-90 minutes before or after consuming a meal, preferably in the evening.

Other ingredients

Gelatin, purified water, glycerin, beeswax, sunflower lecithin, caramel (color), maltodextrin, titanium dioxide (color), st. john's bread (carob)(color), silicon dioxide and riboflavin (color). 

Contains: Dairy, fish (anchovy, sardine), tree nuts (coconut, palm kernel)

No preservatives added.

Supplement Facts
Serving Size: 6 Liquid Soft-Gels
Servings Per Container: 10
  Amount Per Serving %Daily Value
Calories 60
Total Fat 4 g 5%**
Saturated Fat 2 g 10%**
Cholesterol 30 mg 9%
Total Carbohydrates 1 g <1%**
Protein 6 g
Vitamin D3 (as Cholecalciferol) 100 mcg (4000 IU) 500%
Zinc (as Zinc Citrate) 30 mg 273%
Copper (as Copper Citrate) 2 mg 222%
Fish Oil
(18% Eicosapentaenoic acid (EPA), 486 mg, 12% Docosahexaenoic acid (DHA), 324 mg)
2700 mg

AQTIV™ Medium Chain Triglyceride (MCT) Oil
1050 mg
Ashwagandha extract (root)
600 mg

Shilajit extract
500 mg

(as L-Arginine Hydrochloride)
500 mg

(as L-Lysine Hydrochloride)
400 mg
200 mg
(as L-Ornithine Hydrochloride)
150 mg
100 mg
Asian Ginseng (Panax notoginseng) extract (50:1)(root), Astragalus (Astragalus membranaceus) extract (10:1)(root)
50 mg
Boron (as Boron Chelate)
6 mg
BioPerine Complex
BioPerine® Black Pepper extract (95% piperine)(fruit), Ginger extract (5% gingerols)(rhizome)
6 mg
**%Daily Values are based on a 2,000 calorie diet.
†Daily Value not established.


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 product if you are using medication or have any medical conditions. Do not use if you may become pregnant, are pregnant or nursing. Do not exceed recommended daily intake. Not intended for use by persons under 18. Keep out of reach of children. Store in a cool, dry place.

State of California Prop 65. This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.

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