Species Nutrition

Isolyze

100% Pure Whey Protein Isolate

For those who train to win — ISOLYZE™ packs 28g of pure whey protein isolate in every scoop. With advanced NitroSpec filtering, it preserves immune system-enhancing peptides while delivering rapid amino acid absorption to maximize performance and speed up muscle recovery. BCAAs help reduce muscle breakdown after strenuous workouts, increasing muscle growth through anabolic hormone release. Fast-digesting, fat-free, and gluten-free — it feels like lean muscle growth and recovery without compromise.

Size
Flavor (9/9 Available)
  • Vanilla Ice Cream
  • Cookies & Cream
  • Chocolate Milk
  • Cinnamon Donut
  • Coffee
  • Caramel Macchiato
  • Chocolate Peanut Butter
  • Vanilla Peanut Butter
  • Pumpkin Spice
  • Delivery during sell-outs
  • Free gifts on select subscription months
  • Early access to promotions
  • Pause or cancel anytime

by logging into your account and clicking 'Subscriptions'

One-time Purchase

No commitment · Full price

$63.99

Made in USA

Third-Party Tested

Gluten Free

Non-GMO

27.5g Protein Per Serving

Zero Added Sugar

Micro-Filtered Isolate

Fast Absorbing

Digestive Enzymes

Lactose Free

View full details
Isolyze 22 Serve Vanilla Ice Cream - Front

Isolyze

22 Servings / Vanilla Ice Cream

$63.99

Why Isolyze

The Gains You'll Feel

Engineered for athletes who refuse to compromise on purity or performance.

Made in USA

Highest Yield Protein with 28g of protein per serving.

Complete Amino Profile

Full spectrum of essential amino acids including all 9 EAAs.

Gluten Free

Safe for those with gluten sensitivities or celiac disease.

Third-Party Tested

Every batch independently verified for purity and label accuracy.

28g Protein

0g Added Sugar

Micro-Filtered

Fast Absorbing

Digestive Enzymes

Lactose Free

The Science

Why It Works

Isolyze

Nutrient

Per Serving

Amount

NitroSpec Whey Protein Isolate

Per 34g scoop

28g

Total Fat

Per serving

0g

Total Carbohydrate

Per serving

3g

Sugars

Per serving

<1g

Cholesterol

Per serving

<5mg

Sodium

Per serving

150mg

Calcium

Per serving

140mg

Potassium

Per serving

200mg

Micro-Filtered Isolate

Cold-process micro-filtration removes fat and lactose while preserving fragile bioactive protein fractions.

Digestive Enzyme Blend

Protease and bromelain maximise absorption and eliminate the bloat often caused by inferior protein powders.

Batch-Level Purity Testing

Every production run is independently tested for heavy metals, pathogens, and label claim accuracy before shipping.

How We Stack Up

Overview

See how we compare on clinical dosing, ingredient transparency, and overall formulation.

Ingredient
IsolyzeISOLYZE™
Other IsolatesDymatize ISO 100
Whey ConcentrateIsopure Zero Carb

Protein Per Serving

28g

25g

25g

Total Fat

0g

1g

0g

Total Carbohydrates

3g

2g

0g

Sugars

<1g

<1g

0g

Calories

125

110

100

Cholesterol

<5mg

30mg

Third-Party Tested

Swipe to see more

Got Questions

Frequently Asked

FAQ

How does this protein compare to other brands?

ISOLYZE™ delivers 28g of ultra-pure whey protein isolate per serving — more than most competitors. Unlike concentrate-based products, isolate is filtered to remove fat and lactose, leaving you with cleaner, faster-absorbing protein with no bloat.

Are there any artificial sweeteners or additives?

ISOLYZE™ uses sucralose for sweetness — a widely used, FDA-approved sweetener that contributes zero calories and zero sugar. The formula contains no unnecessary fillers, no proprietary blends, and no added fats or carbs beyond what's in the protein itself. What you get is 28g of ultra-pure whey protein isolate with <1g carbs and 0.5g fat per serving.

Can I take more than the recommended serving of ISOLYZE™?

Yes. ISOLYZE™ is pure whey protein isolate, so you can adjust your intake based on your daily protein requirements. Many athletes use 2 servings per day depending on their training demands.

How long does my subscription commitment last?

There is no long-term commitment. You can pause, skip, or cancel your subscription at any time directly from your account dashboard — no questions asked.

What if I don't like it?

We stand behind every product with a satisfaction guarantee. If you're not completely satisfied, contact our support team and we'll make it right.

  • 5 stars: 196 (81%)
  • 4 stars: 16 (7%)
  • 3 stars: 9 (4%)
  • 2 stars: 11 (5%)
  • 1 star: 11 (5%)
J
Jack Burdette
44 Servings / Vanilla Ice Cream

Very good protein I recommend adding a scoop to a bowl of cream of rice with blueberries and honey pre workout meal 💪
The real winner is the macadamia nut oil if some how some way species nutrition can come out with a protein bar or protein baked goods using macadamia nut oil instead of the other fats other company’s use that would be a game changer a protein meal replacement that has monosaturated fats with clean protein and clean carbs

M
Martin Elphick
44 Servings / Chocolate Milk

I’m 52. I’ve tried at least 50 different protein powders over the years. Isolyze just checks all the boxes for me and it’s the product I see the best results with. Other brands have some fancy labels and stories, that’s great for bedtime but I want results in the gym. So that’s why I only use Isolyze.

D
Donna Sterling
44 Servings / Chocolate Milk

My favorite flavor! Tastes just like chocolate milk

J
Jack Graves
Flavor changed

I have been using Species vanilla ice cream flavor protein for over 2 years consistently. The flavor used to be wonderful. As many others have mentioned, the flavor and color have changed. It tastes like dish soap. I will be moving on to a new brand.

J
Jason Michael
The taste and ingredients

Love Dave's products, so wasn't going to right a review, I'm guessing maybe this batch just didn't come out right, got the cinnamon donut only tastes like nasty weigh protein and smells like rotten milk hint of vanilla, had 3 others try it as well , very unhappy,really sucks because I love these products

S
Shannon
Poor quality.

If you like feeling bloated and having bad abdominal pain this product is great for you, i wonder where species nutrition is now getting their raw ingredients, I've been taking this for 3 years you can tell something has changed probably cheap ingredients.

R
R. Bohannon

AWESOME!!!!!! Pumpkin Spice WOW. Dave you nailed it. OUTSTANDING flavor. Species is the Best. If this becomes a year round flavor I'm all in.

H
Hummingbird
My Favorite Brand Well Worth It..

I have used this brand from a few years now. I recently moved to a town and had no luck at any of the health store here, they didn’t carry it! I thought why not try Amazon! Thank you Amazon for coming thru and carrying a few Species products! This protein powder blends nicely, does not have a gritty taste, no after taste and does not make you gassy. I like to mix it with water and a few ice cubes. I sometimes have a had time getting enough protein in me so this is one way that helps a lot for me. I usually drink 2 shakes a day, one in the morning and then one in the evening. If you are looking for a clean protein powder this is one of my favorite brands and suggest giving it a try.

M
Mat Herholz

Your products are great! I mainly take Isolyze post workout and replace two breakfasts a week with Isolyze and Macadamia Nut Oil. I'm down ten pounds since March. You guys may be a little more expensive than others but your product has HIGH quality ingredients and I haven't found a flavor I didn't like yet.

B
Brian Yersky

There is no better isolate product on the market and EVERY flavor is delicious.

L
Lauren DiTucci RN

Best tasting protein powder and macros. Not artificially tasting like other powders and easy on my belly.

A
Ava Melillo

Your products are amazing. I've been using your Isolyze for quite some time and it's definitely a staple in my nutrition as someone who is looking to compete. My favorite has to be chocolate milk. Keep doing what you're doing and thank you!!!

H
Heather Dees

ISOLYZE in all its flavors is amazingly great tasting! It mixes perfectly and provides 27 grams of high quality protein with low calories per scoop! Therefore I must say ISOLYZE is my favorite product!

M
Matthew Lorence
22 Servings / Vanilla Ice Cream

Excellent protein powder at a great sale price for Labor Day!

R
R Garcia
22 Servings / Vanilla Ice Cream

Absolutely horrible. Don't order from this company. Placed an order during one of their sales, and never received my order. Customer Service says I need to contact THEIR courier, and there's nothing they can do. Scam company

G
Gregg Girrens
22 Servings / Vanilla Ice Cream

I've been using supplements for over 55 years many different brands Species is my go too for the past 15 years

D
David Mcintyre
22 Servings / Vanilla Ice Cream

By far the cleanest and highest quality protein supplement on the market. Great taste and easy to mix and digest.

A
Andrea
44 Servings / Vanilla Ice Cream

The best!!

M
Mohammad Alotbi
44 Servings / Chocolate Milk

One of the best protein powders

J
Jill Dearmin
22 Servings / Chocolate Milk

Great product, high-quality fast shipping and easy ordering and it’s always great when they have a sale

M
Matthew Thompson
44 Servings / Vanilla Ice Cream

Great taste
Great quality

A
Andrew Gould
44 Servings / Chocolate Peanut Butter

Great Flavor quality protein one of the Best on the market highly recomended!

S
Sean

Taste and mixes very well

D
Dino Tomassi
44 Servings / Vanilla Ice Cream

Great product!!

M
Matthew Rich
44 Servings / Cinnamon Donut

High yield protein powder

H
Hannah
44 Servings / Vanilla Ice Cream

Best of the best cleanest protein and tastes amazing.

I
Ivan S Celebrado
22 Servings / Chocolate Milk

I like the product taste real good goes well the fruits that I put in.