How do I maximize the benefits of Optygen?

To maximize the benefits, take Optygen consistently during periods of intense training and racing. It helps your body adapt more effectively to physical stress, increases anaerobic threshold, and reduces lactic acid buildup—

Should I take Optygen every day?

Yes—daily use is essential, even on rest days. Optygen works best when it's part of your everyday routine. Skipping days can reduce its effectiveness and limit the long-term benefits.

How soon will I notice results?

Most users begin to notice improvements within about six days of consistent use. However, Optygen is designed for long-term results. For optimal performance gains, use it consistently over several months.

When should I take Optygen?

It is best to take Optygen every day with a meal. This helps with absorption and digestion.

First Endurance Optygen 0 3 Ounce | Desertcart New Zealand

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

NZ$351

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

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Description

🚀 Unlock your peak performance—slow burn, big gains!

CLEAN LEGAL FORMULA - Stimulant-free and safe, perfect for professional athletes and managers alike
NATURAL ADAPTOGEN POWER - Herbal and mineral blend inspired by Sherpa endurance secrets
OXYGEN EFFICIENCY BOOST - Improves oxygen absorption for enhanced aerobic capacity
SUSTAINED PERFORMANCE UPGRADE - 30 servings designed for gradual, lasting endurance gains
SCIENTIFICALLY BACKED RECOVERY - Reduces lactic acid buildup to speed up muscle recovery

Optygen by First Endurance is a 0.3-ounce capsule supplement offering 30 servings designed to enhance athletic performance and recovery. Utilizing a unique blend of herbs, minerals, and compounds, it supports blood sugar regulation, oxygen absorption, and reduces lactic acid buildup. Inspired by elite endurance athletes and Sherpa traditions, Optygen is stimulant-free, legal, and works gradually over weeks to improve aerobic metabolism and speed recovery.

Specifications

ASIN	B00EB8IYQE
Brand	FIRST ENDURANCE
Brand Name	FIRST ENDURANCE
Color	One Color
Customer Reviews	4.2 out of 5 stars 49 Reviews
Flavor	Unflavored
Flavour	Unflavored
Item Dimensions	6.4 x 6.4 x 5.7 centimeters
Item Form	Capsule
Item Weight	0.5 Pounds
Item dimensions L x W x H	6.4 x 6.4 x 5.7 centimeters
Item form	Capsule
Item weight	0.5 Pounds
Manufacturer	Inventory Management Services- HPC
Manufacturer Part Number	82130
Number of Items	1
Primary Supplement Type	Calcium
Primary supplement type	Calcium
UPC	000000821308

Reviews

J**T

It’s first delivery

Good and great

23.03.2026

A**R

Great

Excellent item!

18.03.2026

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.

13.04.2026

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.

22.01.2026

P**D

Optygen

My go to for racing fitness

22.02.2026

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

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The product exactly matches the description. Very satisfied with my purchase.

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

NZ$351

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago