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🚀 Unlock your ultimate endurance — train harder, recover faster, outperform everyone!
FIRST ENDURANCE Optygen is a premium endurance supplement designed to elevate athletic performance by improving oxygen utilization, increasing VO2 max, and buffering lactic acid buildup. Its proprietary ATPro Matrix, enriched with adaptogens like Rhodiola and Cordyceps, supports sustained ATP energy production, enabling athletes to train harder, recover quicker, and push beyond their limits.
| ASIN | B00EB8IYQE |
| ASIN | B00EB8IYQE |
| Age Range Description | Adult |
| Best Sellers Rank | #164,465 in Health & Household ( See Top 100 in Health & Household ) #704 in Sports Nutrition Endurance & Energy Supplements |
| Brand Name | FIRST ENDURANCE |
| Color | One Color |
| Customer Reviews | 4.1 4.1 out of 5 stars (46) |
| Date First Available | August 3, 2013 |
| Department | unisex |
| Dosage Form | Capsule |
| Flavor | Unflavoured |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 2.5 x 2.5 x 2.25 inches |
| Item Form | Capsule |
| Item Weight | 0.5 Pounds |
| Item model number | 840069-01 |
| Manufacturer | Inventory Management Services- HPC |
| Manufacturer | Inventory Management Services- HPC |
| Manufacturer Part Number | 82130 |
| Material Features | Vegetarian |
| Model Name | 840069-01 |
| Model Number | 840069-01 |
| Number of Items | 1 |
| Product Dimensions | 2.5 x 2.5 x 2.25 inches; 8 ounces |
| UPC | 000000821308 |
J**T
It’s first delivery
Good and great
A**R
Great
Excellent item!
M**S
Proven History with Supplement
Used product for years with success. I use the original and combine it with Beta Alanine separately to get more effect than Optygen HP.
A**S
Great product poor delivery
I think Optygen and First Endurance are great have used it a long time and it works great This is review is for delivery. This never arrived on time or as stated. I even subscribed and seem to get the delayed message. This product has a loading dose and its disappointing to not get it on the date its supposed to be delivered.
P**D
Optygen
My go to for racing fitness
R**O
GOOD RESULT
THE BEST
E**L
This is not any different than the original Optygen and charge $13.00 more
I paid an additional $13.00 for a product advertised on the label as 40% stronger Rhodiola and the ingredients are exactly the same as the original. Don't buy this product without verifying the label as I did. So much for trusting the sellers on Amazon.
M**L
It works
I used this product for about 45 days before my last century. On the plus side, it definitely works. I feel like it allowed me to train harder and faster than my body was naturally capable of. That might sound like a positive, but I believe it caused me to over train, and I was pretty flat for the century. When I do my next century I will most likely start using it a just a week or two before the ride.
Trustpilot
3 weeks ago
1 week ago