Two white bags labeled COMPLEMENT® Strongevity Stack by Complement feature minimalist designs: one highlights plant-based ingredients, the other promotes creatine’s benefits for energy and brain health.

A man makes a smoothie with Complements COMPLEMENT® Strongevity Stack in the kitchen, while a smiling woman stands outside holding a mug. Text: The Foundation for Strength & Longevity.

A packet of COMPLEMENT® Strongevity Stack and a clear glass of water sit on a black background. Text highlights benefits: longevity, brain health, muscle growth, reproductive health, and fast dissolving by Complement.

A bag of Complement COMPLEMENT® Strongevity Stack is shown on a light surface with powder scattered around, highlighting its plant-based formula, minimal ingredients, and rich nutrition.

A cardboard box labeled Complement sits on a doormat. Overlaid is a 5-star review from James praising COMPLEMENT® Strongevity Stacks clean, transparent ingredients for supporting his fitness journey (verified purchase: 06/12/2025).

COMPLEMENT® Strongevity Stack

Want to stay strong for the long haul? The Strongevity Stack combines COMPLEMENT® Creatine with Unflavored Organic Protein to help build and maintain muscle, support brain health, and promote a vibrant lifestyle for years to come.*

This two-month stack pairs daily Creatine with Protein to enjoy as desired.

Supports strength, vitality, and healthy aging to help you stay active and strong.*
Supports cognitive function and cellular energy for a sharper mind and sustained daily performance.*
COMPLEMENT® Creatine (60 servings): Features Creavitalis® creatine monohydrate for superior absorption to fuel muscle maintenance and longevity.*
COMPLEMENT® Unflavored Organic Protein (30 servings): Provides 15g of complete, plant-based protein per serving with clean, organic ingredients and no chalky aftertaste.*
Every product is third‑party tested for purity and quality, with clean, evidence-based ingredients you can trust.

A black and white icon of a simplified American flag inside a circle, next to the text Made in USA.

A black leaf icon with text beside it reading 100% Vegan in bold, indicating the product is completely vegan.

A simple line drawing of a rabbit sitting upright next to the words Cruelty Free, indicating that the product is not tested on animals.

Icon of a laboratory flask filled halfway, next to the words Third Party Tested in bold, gray text.

What’s included?

COMPLEMENT® Creatine

60-SERVING SUPPLY

The absolute purest creatine monohydrate to support energy, cognition, strength... and a longer, better life.* Built for more than athletes, it’s for thinkers, movers, and doers.

Supplement Facts Third Party Test Results

100%

Pure

Creatine

Monohydrate

Fast

Dissolving

Water

Absorption-Optimized

Formula

Learn More

A white packet labeled Creatine Pure Creatine Monohydrate lies on a dark surface next to a glass of water. The packet highlights benefits like energy, brain health, muscle growth, and reproductive health.

COMPLEMENT® Unflavored Organic Protein

30-SERVING SUPPLY

Complete, organic, endlessly versatile plant protein. Made with a transparent blend of real food proteins for an unflavored, never chalky texture.

Supplement Facts Third Party Test Results

15g

Plant-Based

Protein

5

Real-Food

Ingredients

100%

Certified

Organic

Learn More

One Stack for All‑Day Energy & Restorative Nights

Supports muscle growth & retention.*

Helps maintain strength & mobility.*

Supports cognitive health & clarity.*

Helps fuel cellular energy production.*

Promotes healthy aging & vitality.*

A smiling woman holds up a Complement-branded bag of Pure Creatine Monohydrate supplement, highlighting benefits like longevity, energy, brain health, muscle growth, and reproductive health.

A man in a light blue shirt holds a green smoothie and stands by a wooden table with a bag of Complement Organic Protein powder, measuring scoop, bananas, and a leafy plant in the background.

A smiling woman in athletic wear stands in a kitchen, holding and opening a bag of creatine supplement on the counter in front of her.

A person in a purple tank top opens a bag of Complement Unflavored Organic Protein powder in a kitchen, with a black Complement shaker cup on the counter nearby.

4.76

71 reviews

i can feel the difference!

It took a bit of getting used to when I first started taking this Creatine, but I began to notice more energy, more strength, and it lasts all day. I tried another brand mixed with something else that's also healthy, thinking I could get twice the benefit, but it doesn't pack the same punch as the Complement for me now that I've had the chance to compare the two.

Best and cleanest plant-based/vegan supplements!

I absolutely love Complement products! The multivitamins, chocolate protein powder, creatine, and B12 are all staples in my routine. It is hard to make sure to get all of nutrients needed to live a super healthy, vegan lifestyle even when my eating habits are on point and with these supplements, my bloodwork is always on point too. Thank you Complement!

Awesome product!

As a loyal customer of Complement, I added Creatine to my daily routine and couldn’t be any happier! It dissolves easily and has absolutely no taste!
Taking care of my physical and cognitive health is my top priority!

Creatine

As promised - no flavor, easily dissolves in whatever you put it in. Appreciate the assurance of good quality product from Complement.

Review of Complement's Creatine

This is a great product. I've been adding it to powdered drinks every morning and it doesn't have any taste to it so that makes it easy to add to anything.

1 2 3

100

Day Money-Back Guarantee

“Minimalist vector icon representing a product guarantee or warranty with clean lines and a modern aesthetic, suitable for wellness product pages and e-commerce branding.”

100% Happy

We stand behind our products 100%. If you’re not happy with the results, taste, or experience, we’ll fix it.

“Minimalist vector icon symbolizing product guarantee or warranty, featuring clean lines and a modern design for wellness product pages and online store branding.”

100-Day Guarantee

You have a full 100 days after receiving your product to try it out and see if it’s the right fit for you.

“Minimalist vector icon representing a product guarantee or warranty, designed with clean lines and a modern aesthetic for wellness product pages and e-commerce branding.”

100% Money-Back

And if you don’t love it within the first 100 days, we’ll issue a full refund. No questions asked. No fine print. That’s the Complement guarantee.

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WHO IS THE STRONGEVITY STACK FOR?

The Strongevity Stack is designed for anyone who wants to support their strength, vitality, and healthy aging — whether you’re active, plant‑based, or simply looking to stay strong as you get older.*

WHY COMBINE COMPLEMENT CREATINE WITH UNFLAVORED ORGANIC PROTEIN?

Creatine supports cellular energy, brain health, and muscle maintenance, while our clean plant-based protein provides the building blocks for lean muscle. Together, they offer a powerful foundation for long‑term fitness.*

HOW DO I TAKE THE STRONGEVITY STACK?

You can take them together (simple mix a serving of each in your shake or smoothie), or separately at various points throughout the day. The key is consistency.

IS THE STRONGEVITY STACK SAFE FOR DAILY USE?

Yes! This two-month stack pairs daily Creatine with Protein to enjoy as desired.
Both products are made with clean, transparent ingredients and are third‑party tested for quality and purity.

IS IT JUST FOR ATHLETES?

Not at all. While athletes love creatine and protein, the Strongevity Stack is just as beneficial for anyone looking to support muscle retention, cognitive health, and vitality as they age.

COMPLEMENT® Strongevity Stack

What’s included?

COMPLEMENT® Creatine

100%

Fast

COMPLEMENT® Unflavored Organic Protein

15g

5

100%