The GLP-1 strength company · 60-day money-back guarantee · Made in the USA
For women 55+ on GLP-1 medications

Losing weight shouldn’t mean losing your strength.

Preserve is a once-a-day creatine & electrolyte drink that helps protect the muscle you can lose on a GLP-1 — built on the researched 5g dose of creatine, one scoop each morning.

★★★★★ Built on published clinical research — sources on every claim.
A strong, healthy woman in her late fifties holding a glass of Preserve
5g clinical creatine dose
3 essential electrolytes
0 sugar · caffeine · loading
30 mornings per tub
USA made
Preserve by KeptStrong
What’s inside · every 10g scoop

Four ingredients. Nothing to hide.

5,000mg
Creatine MonohydrateThe researched dose for muscle energy & strength
1,000mg
SodiumCreatine’s doorway into muscle — and a mineral GLP-1s deplete
200mg
PotassiumSupports normal muscle & nerve function
60mg
MagnesiumElectrolyte balance & everyday hydration

Real lemon · stevia-sweetened · no sugar, caffeine, or fillers.

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The part nobody puts on the pamphlet

When the weight comes off fast, muscle can go with it.

Up to 40% or more of the weight lost on GLP-1s can come from muscle.

You’re thrilled with the scale — and quietly uneasy that jars are harder to open. After 55, muscle isn’t about looking toned. It’s independence: carrying your own groceries, catching yourself when you stumble, staying in your own home on your own terms.

A strong woman in her sixties walking briskly outdoors
The science, simply

How Preserve helps you keep your strength.

Creatine and electrolytes, working together — here’s the mechanism in plain language.

A strong capable arm carrying groceries
01 · The problem

Muscle leaves with the weight

GLP-1s curb appetite and drop weight fast — but the body pulls from muscle too. Up to 40% or more of what you lose can be lean tissue, and after 55 that’s the muscle keeping you independent.

A scoop of Preserve powder
02 · Creatine

Fuel for the muscle you keep

Creatine helps your muscles regenerate ATP — their energy currency — so the muscle you hold onto can actually work: lifting, carrying, catching yourself. 5g is the researched daily dose.

Preserve dissolving in a glass of water
03 · Electrolytes

The doorway — and what you lose

Creatine enters muscle through a sodium-dependent doorway, so we pair it with electrolytes. And because GLP-1s can leave you low on fluids and minerals, Preserve replaces those too.

One scoop5g creatine + 3 electrolytes in lemon water
Sodium carries it inCreatine crosses the sodium-dependent doorway into muscle
Muscle saturatesFull creatine reserve reached in ~28 days — no loading
Strength, keptThe foundation under lifting, carrying, staying independent

Mechanism described from published research on creatine and electrolytes as ingredients. Electrolytes are included because creatine transport is sodium-dependent — not as an absorption booster. Preserve is a dietary supplement, not a treatment.

What the research actually shows

Not a trend. One of the most-researched ingredients in nutrition.

+1.37kg

More lean muscle gained by adults 57–70 who took creatine while doing strength training vs. training alone — across 22 studies and 721 people.

Meta-analysis, older adultsOpen Access J. of Sports Medicine, 2017
Women

A 2025 review concluded creatine “can significantly improve muscle strength and physical function in postmenopausal women” — particularly combined with resistance training.

Systematic review, women’s healthJ. Int. Society of Sports Nutrition, 2025
5g

The researched daily dose — the exact amount in every scoop of Preserve. No loading phase, no guesswork.

ISSN Position Stand on CreatineJ. Int. Society of Sports Nutrition, 2017

These statements describe published research on creatine as an ingredient and are not claims about any medication or condition. Creatine supports muscle and strength when combined with resistance training. Preserve is a dietary supplement, not a treatment.

One scoop, every morning

The 28-day arc.

At 5g a day, creatine reaches full muscle saturation in about four weeks — no loading, no guesswork.

WEEK 1

A promise to yourself

A pleasant lemon drink each morning. Easy to keep, even on a busy Tuesday.

WEEK 2–3

The reserve fills

Creatine gradually saturates your muscle — no loading week required.

DAY 28

The arc completes

Full saturation reached. The foundation is set, quietly, under everything you do.

Choose your supply

Your strength, kept.

Pick your pack, then choose one-time or subscribe & save.

1 tub of Preserve
1 TUB · 30 mornings
$31.20
$39 one-time · $31.20 on subscription
to try it
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3 tubs of Preserve
3 TUBS · 90 mornings
$71.20
$89 · $23.73 / tub
save 20% + free shipping
6 tubs of Preserve
6 TUBS · 180 mornings
$119.20
$149 · $19.87 / tub
best price per tub
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Questions women ask us

Before you start

Will creatine make me bulk up?

No. Creatine helps you hold onto and use the muscle you have — it doesn’t add bulk, especially for women. It supports strength and function, particularly when paired with gentle strength movement.

Is it safe to take with my medication?

Preserve is a dietary supplement, not a drug, and makes no claim to treat or interact with any medication. As with anything new, we recommend checking with your doctor.

Do I have to work out?

The research pairs creatine’s benefits with resistance movement — but that means the ordinary strength of an active day: carrying, standing up with intention, light bands. No gym required.

What does it taste like?

A light, lightly sweet lemon — sweetened with stevia, no sugar. One scoop in a glass of water each morning.

What if it’s not for me?

Take it every morning for 60 days. If you don’t feel steadier and stronger, write to us for a full refund. No forms, no interrogation.

The GLP-1 line

Built for every part of the journey.

Four supplements — one for each way a GLP-1 changes your body.