Pre•serve
Don’t let the scale take your strength with it. Preserve is the once-a-day lemon creatine & electrolyte drink that helps you hold onto the muscle you can lose while the weight comes off — the muscle that keeps you strong, steady, and independent. One scoop each morning, built for your GLP-1 years.
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Built on clinical research
A source on every claim
Third-party made in the USA*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Preserve is a dietary supplement, not a treatment for, and does not interact with, any medication or condition. Always consult your physician before starting a new supplement.
The weight you’re losing isn’t only fat. Some of it is the muscle you can’t afford to lose.
The scale is finally moving, and it feels like the win you waited years for. But here’s what the before-and-after photos never show: weight lost on a GLP-1 isn’t all fat. When appetite drops this sharply, the body raids lean tissue too. Depending on the study, up to 40% or more of the weight you lose can come from muscle rather than fat — and after 50, that’s muscle you may never get back. You could hit your goal weight and arrive there weaker than when you started. That’s the quiet cost nobody warns you about, and it’s the exact reason Preserve exists.
After 50, muscle has a bigger job than looking toned in a mirror. It’s what keeps you running your own life: carrying your own groceries up the steps, catching yourself when a foot slips on the curb, getting off the floor after playing with a grandchild without needing a hand. Muscle is independence. And it’s far harder to rebuild after 50 than it was at 30.
So the real question is bigger than how much weight you lose. It’s what you’re made of when you get to your goal, and whether you arrive there strong or smaller and more fragile. Preserve exists for that second answer.
Sources: Neeland IJ et al., Diabetes Obes Metab 2024 (lean-mass share of GLP-1 weight loss ranges widely by study). Wilding JPH et al., STEP 1, N Engl J Med 2021 (DXA substudy). Structure/function only; individual results vary.
Protecting muscle isn’t enough. The muscle you keep still has to work — and creatine is how it’s fueled.
Standing from a chair, catching yourself on the stairs, lifting a grandchild — every one of those is a muscle contraction, and every contraction spends a molecule called ATP for energy. Your body only stores a few seconds’ worth at a time, so it has to regenerate ATP constantly. Creatine is the reserve tank that lets it do that, and it’s the single most-studied ingredient for supporting lean mass and strength. More available creatine means the muscle you’re fighting to keep can actually show up when you ask it to.
And when appetite falls on a GLP-1, food and fluid intake fall with it, so the everyday electrolytes you’d normally get from meals get harder to cover. That’s why we went beyond creatine alone: Preserve pairs the researched 5g dose with sodium, potassium and magnesium, so a single morning scoop supports both the muscle and the hydration side of this season.
Muscle runs on ATP
Muscle contractions burn ATP in seconds and must remake it constantly. When the tank runs low, everyday strength fades first.
Fuel for the muscle you keep
Creatine helps regenerate ATP, so the muscle you hold onto can keep working. 5g daily is the researched dose, and it’s the exact amount in every scoop.
Electrolytes for eating less
Creatine is absorbed into muscle through a sodium-dependent transporter. That’s one reason we pair it with the electrolytes you can run low on when eating less.
Sources: Kreider RB et al., ISSN Position Stand, J Int Soc Sports Nutr 2017 (5g dose, ATP role). Russell AP et al., Front Physiol 2014 (creatine enters muscle via a sodium-dependent transporter — mechanism only). Filippatos TD et al., Rev Diabet Stud 2014 (GI effects & electrolyte loss rationale).
Exactly what’s in every scoop.
One 10g scoop, once a day, in a glass of water. Lemon flavored, no sugar. 300g tub = 30 servings.
The single most-researched form of creatine, at the 5g daily dose used across the clinical literature to support muscle energy and strength.
A key electrolyte for hydration and fluid balance, and one that’s easy to fall short on when appetite and intake drop.
Works alongside sodium to support normal muscle contraction and nerve signaling.
Supports electrolyte balance and everyday hydration in a gentle, well-absorbed form.
Other ingredients: Natural lemon flavor, Stevia leaf extract, Silicon Dioxide (anti-caking). That’s the entire list.
What’s NOT in it
- × No added sugar, sweetened with stevia only
- × No artificial dyes or colors
- × No proprietary blends: every dose is on the label
- × No fillers or unnecessary excipients
- × No loading phase required
- × No stimulants or caffeine
- × No gluten, no lactose
Third-party manufactured in the USA in a cGMP facility.
The evidence, with its sources.
We won’t promise you a number on a scale. What we will do is show you the published research on the ingredient, with the dose, duration, and source of each finding, and let it speak plainly.
More lean tissue mass in adults aged 57–70 who took creatine while doing resistance training, versus the same training alone. Pooled across 22 studies and 721 participants.
Meta-analysis · older adultsChilibeck PD et al., Open Access J Sports Med 2017 · dose ~5g/day · combined with strength trainingA 2025 review concluded creatine “can significantly improve muscle strength and physical function in postmenopausal women”, particularly when combined with resistance training.
Review · women’s healthSmith-Ryan AE et al., J Int Soc Sports Nutr 2025 · combined with resistance trainingDepending on the study, up to 40% or more of the weight lost on GLP-1 medications can come from lean (muscle) mass. That’s the reason protecting muscle matters during rapid loss.
Review · GLP-1 & lean massNeeland IJ et al., Diabetes Obes Metab 2024 · range across studies, not a fixed numberThe researched daily maintenance dose, documented safe up to 30g/day for 5 years in healthy individuals, with no loading phase needed. It’s the exact dose in every Preserve scoop.
ISSN Position Stand · safety & doseKreider RB et al., J Int Soc Sports Nutr 2017 · 3–5g/day maintenanceThese describe published research on creatine as an ingredient. They are not claims that Preserve treats, prevents, or alters the effect of any medication or condition. Lean-mass findings reflect creatine combined with resistance training.
What the first four weeks look like.
An honest timeline. It covers the habit and the science of saturation, not promises about your body. Everyone is different.
An easy ritual
A light, lemon drink you actually look forward to. It mixes clean and goes down easy, the kind of habit that’s simple to keep every morning.
The reserve begins to fill
With a daily scoop, your muscles start topping up their creatine stores. No loading week or mega-doses, just a steady 5g.
Supporting your training
As stores build, creatine is in place to support the strength movement you’re doing, from formal workouts to the ordinary effort of an active day.
Full saturation
At 5g/day, intramuscular creatine reaches full saturation in about four weeks, and stays there while you keep the daily habit. The foundation is set.
Saturation timing: Antonio J et al., Nutrients 2022 (restating Hultman 1996 — low-dose creatine saturates stores in ~28 days without loading). This describes how the ingredient behaves; it is not a promise of any specific outcome.
Is Preserve right for you?
Preserve is built for you if…
- ✓ You’re on a GLP-1 (or recently were) and want to protect your strength while the weight comes down
- ✓ You’re over 50 and care more about staying capable and independent than about a number
- ✓ You can keep one simple, once-a-day scoop-in-water habit
- ✓ You do some form of strength movement, even the everyday kind
- ✓ You want a clean label with a source behind every claim
It may not be for you if…
- × You’re looking for a weight-loss product. Preserve supports strength, not weight loss
- × You want a stimulant or energy-drink effect. There’s no caffeine here
- × Your doctor has told you to limit creatine, sodium, or potassium. Check with them first
- × You’re pregnant or nursing without clearing new supplements with your provider
Built for the people the diet industry forgets.
Most supplements are built for 25-year-olds chasing a personal record. KeptStrong is built for the person on a GLP-1 who wants to come out the other side of this lighter and strong.
Research-led
Every formula starts with the published clinical literature, not a trend.
A source on every claim
If we say it, we cite it, with the dose and the study behind it.
Manufactured in the USA
Third-party manufactured in a cGMP facility, right here at home.
Kept in writing
A 60-day money-back guarantee. Our word, in writing.
Real reviews, once they’re earned.
We just opened our doors. Rather than invent testimonials, we’re leaving this space for the women who use Preserve to fill in their own words.
In the meantime, our confidence comes from the published research on creatine, and from a 60-day guarantee that puts the risk on us, not you.
Days to feel the difference, or your money back.
Take Preserve every morning for two full months. If you don’t feel steadier, stronger, and glad you started, write to us within 60 days for a full refund. No forms, no interrogation, and you don’t have to send the tub back.
That’s the whole point of the guarantee: the only risk in trying Preserve should be a little of your morning, not your money. Our word, kept in writing.
Questions women ask us most.
What does it taste like, and how do I mix it?
When should I take it, and does timing matter?
Is it safe to take alongside my GLP-1 medication?
Do I have to do a “loading phase”?
Will creatine make me bulk up or hold water?
Do I need to work out for it to be worth it?
How does Preserve fit with the rest of the KeptStrong line?
Is it vegetarian? Is it halal?
How does the subscription work, and can I cancel?
When will I see it, and how fast does it ship?
One lemon scoop each morning — the researched 5g dose, the electrolytes you run short on when eating less, and a published source behind every claim. If it isn’t for you, 60 days to a full refund. The only thing you risk is a minute of your morning.
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