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Losing weight fast doesn’t only burn fat. Some of what you lose is muscle. Your strength.
The GLP-1 strength company · 60-day money-back guarantee · Manufactured in the USA
KeptStrong · Creatine + Hydration
5,000mg creatine monohydrate: the researched daily dose*
1,260mg electrolytes: the hydration side of eating less
Light lemon, zero sugar: stevia-sweetened, never chalky
One scoop a day · 30 servings · no loading phase
Built on clinical research
A source on every claim
Third-party made in the USA
Pre•serve
The scale is dropping. Don’t let your strength drop with it. Preserve is a lemon drink you mix once a day. It helps you keep the muscle you can lose along with the weight. The muscle that opens the jar. Climbs the stairs. Gets you up off the floor. It also puts back the water and minerals you miss when you eat less. One scoop. Every morning. Built for your GLP-1 years.
Formulated on published clinical research · a source on every claim
5,000mg creatine monohydrate: the researched daily dose*
1,260mg electrolytes: the hydration side of eating less
Light lemon, zero sugar: stevia-sweetened, never chalky
One scoop a day · 30 servings · no loading phaseSubscribe & Save 20%
One-time
Why most women subscribe: the muscle you keep is what protects your results. Creatine only works if you take it every single day, so we make sure you never run out. Lowest price on every delivery. Skip or cancel anytime in one click. No phone call, no hoops.
2. Choose your supply
Try it risk-free for 60 days·Cancel or skip anytime·Ships from the USA
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.
In plain pictures
What’s really happening when the scale drops fast.
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You feel it in small ways first. Jars that take two tries. Stairs that feel steeper. Bags you set down twice.
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And eating less also means less water and fewer minerals coming in. Two tanks drain at once.
Illustrative scenes, not customer photos. Preserve was built for all three. Here’s how.
The part nobody puts on the pamphlet
The weight you’re losing isn’t only fat. Some of it is the muscle you can’t afford to lose.
About 1 in 4 pounds lost on a GLP-1 is muscle, not fat. Some studies found 25–39%.
You’ve seen it in the mirror. You’re smaller, but you look softer. Not fitter. “Deflated,” some women call it. That’s not fat you’re seeing. That’s lost muscle. The part of the weight you were never supposed to lose.
The scale is finally moving. It feels like the win you waited years for. But the before-and-after photos hide something. The weight you lose on a GLP-1 is not all fat. When you eat this little, your body takes from muscle too. In the biggest body-scan study, about 1 in 4 pounds lost was muscle. Some studies found 25–39%. And after 50, lost muscle is hard to ever get back. You could hit your goal weight and end up weaker than when you started. Nobody warns you about that. It’s the reason Preserve exists.
After 50, muscle isn’t about looking toned. It’s what runs your life. It carries your groceries up the steps. It catches you when your foot slips on the curb. It gets you up off the floor after you play with a grandchild. Muscle is independence. And it’s much harder to build back after 50 than it was at 30.
So the real question isn’t how much weight you lose. It’s what you’re made of when you get there. Strong, or smaller and more fragile. Preserve was built to help you arrive strong.
Sources: Look M et al., SURMOUNT-1 body-composition substudy, Diabetes Obes Metab 2025 (~25% of weight lost was lean mass; PMID 39996356). Prado CM et al., Lancet Diabetes Endocrinol 2024 (25–39% across studies; PMID 39265590). Structure/function only; individual results vary.
Why creatine, and why now
The muscle you keep still has to show up. Creatine is its fuel.
Every move you make runs on muscle fuel. Standing up. Catching yourself on the stairs. Lifting a grandchild. Your body burns that fuel in seconds, then has to make more. Creatine is how it makes more. Think of it as your muscles’ spare battery. It’s also the most-studied strength ingredient in the world. With a full tank, the muscle you’re fighting to keep can do its job when you call on it.
And there’s one more problem. When you eat less, you get fewer minerals from food. Salt. Potassium. Magnesium. Your muscles and nerves run on them. So Preserve doesn’t stop at creatine. Every scoop pairs the researched 5g dose with the electrolytes your meals used to cover. One drink. Both jobs.
01 · The energy problem
Your muscles run on fuel
Every push, lift, and step burns fuel your body must remake within seconds. When the tank runs low, everyday strength fades first.
02 · Creatine’s job
Creatine refills the tank
Creatine helps your body remake that fuel fast, so the muscle you keep can keep working. 5g a day is the researched dose. That’s exactly what’s in every scoop.
03 · The hydration side
Electrolytes for eating less
Creatine gets into your muscle with help from sodium. That’s one reason we pair it with the minerals you run low on when you eat 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).
The hydration side
Eating less quietly means drinking less. Preserve covers that side too.
Much of your daily water and electrolytes arrive with your food. Less food means less of both.
Here’s what almost nobody tells you. Most of your water and minerals come in with your food. Eat less, and you get less of both. Add the queasy mornings these medicines can bring, and you can run low without knowing it. You feel it as flat, dragging, lightheaded days. And you blame everything else.
And muscle itself is mostly water. The strength side and the water side are the same story. So every scoop of Preserve pairs the 5g creatine dose with 1,000 mg sodium, 200 mg potassium, and 60 mg magnesium. No sugar. No dyes. This isn’t a sports drink pretending to be one. It’s the water-and-mineral side of eating less, handled in the same glass. Two tanks. One morning ritual.
Sources: Filippatos TD et al., Rev Diabet Stud 2014 (GI effects of GLP-1s & fluid/electrolyte loss rationale). Structure/function only; not a claim to treat any medication effect.
Full transparency
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.
5,000mg
Creatine (as Creatine Monohydrate)
The single most-researched form of creatine, at the 5g daily dose used across the clinical literature to support muscle energy and strength.
1,000mg
Sodium (as Sea Salt)
A key electrolyte for hydration and fluid balance, and one that’s easy to fall short on when appetite and intake drop.
200mg
Potassium (as Potassium Chloride)
Works alongside sodium to support normal muscle contraction and nerve signaling.
60mg
Magnesium (as Magnesium Malate)
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.
What the research actually shows
The evidence, with its sources.
We won’t promise you a number on a scale. We’ll show you the published research instead. The dose, the length, and the source of every finding. You can check each one.
+3lbs
Three more pounds of muscle. That’s what adults in their 60s kept when they added creatine to strength training, compared to the same training without it. 22 studies. 721 people.
Meta-analysis · older adultsChilibeck PD et al., Open Access J Sports Med 2017 · +1.37 kg lean mass · ~5g/day · with resistance trainingWomen
This isn’t just for young men. A 2025 review found creatine “can significantly improve muscle strength and physical function” in women past menopause. Best results came with resistance training.
Review · women’s healthSmith-Ryan AE et al., J Int Soc Sports Nutr 2025 · combined with resistance training1 in 4lbs
In the biggest body-scan study, about 1 in 4 pounds lost on a GLP-1 was muscle, not fat. Some studies found 25–39%. That’s why protecting muscle matters while the weight comes off.
GLP-1 & lean massLook M et al., SURMOUNT-1 substudy, Diabetes Obes Metab 2025 · Prado CM et al., Lancet Diabetes Endocrinol 20245g/day
5 grams a day is the researched dose. Studies have used up to 30g a day for five years in healthy adults, with no loading phase. Every scoop of Preserve is exactly 5g.
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.
One scoop, every morning
What the first four weeks look like.
An honest timeline. It shows how the habit builds and how the ingredient works. No promises about your body. Everyone is different.
Day 1
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.
Week 1
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.
Weeks 2–4
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.
~Day 28
A full tank
At 5g a day, your muscles reach a full creatine tank in about four weeks. It stays full as long as you keep the 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.
An honest fit check
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
Why KeptStrong
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.
What people are saying
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.
You wouldn’t be starting alone, either: roughly 1 in 5 women aged 50–64 have used a GLP-1 medication: millions of women navigating exactly this season. Preserve exists for them.
Source: Bozick R et al., RAND Corporation, 2025.
60 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.
Before you start
Questions women ask us most.
What does it taste like, and how do I mix it?
A light, lightly-sweet lemon, sweetened with stevia. No sugar. Stir one 10g scoop into 6–8 oz of cold water each morning until dissolved. Cold water and a quick stir give the cleanest taste; a shaker bottle makes it effortless.
When should I take it, and does timing matter?
For creatine, total daily consistency matters far more than timing. Take it whenever you’ll actually remember it. Most people pair it with their morning glass of water so it becomes automatic. What counts is having a scoop every day.
Is it safe to take alongside my GLP-1 medication?
Preserve is a dietary supplement made from creatine and everyday electrolytes, not a drug. It makes no claim to treat, replace, or interact with any medication, and it isn’t a treatment for any condition or side effect. It’s simply the same creatine and minerals thousands of people already take with their daily routine. As with anything new, confirm with your own doctor or pharmacist, especially if you’ve been told to watch your sodium or potassium. Then take it with confidence.
Do I have to do a “loading phase”?
No. Loading (taking 20g+ per day for a week) was never required. At a steady 5g a day, intramuscular creatine reaches full saturation in about four weeks, and it stays there as long as you keep the daily habit. One scoop is all you need.
Will creatine make me bulk up or hold water?
No. Creatine helps you hold onto and use the muscle you already have. It doesn’t add bulk, and that’s especially true for women, who typically don’t gain size from it. Any initial change is simply your muscles holding a little more of their own energy stores, right where you want it.
Do I need to work out for it to be worth it?
No gym membership required. The strongest research pairs creatine with resistance movement, but “resistance movement” means bodyweight squats, resistance bands, carrying the groceries, taking the stairs, or a short daily strength routine at home. If you’re moving your body against any resistance, Preserve is working to support the effort you’re already making. Pair it with even a little daily strength work and you’re giving your muscle its best shot at coming through this season intact.
How does Preserve fit with the rest of the KeptStrong line?
Preserve covers muscle and hydration. It stacks cleanly with Renew (collagen for skin, hair, nails & joints), Revive (digestion & daily nutrients), and Restore (L-glutamine for the gut lining). Each supports a different way a GLP-1 changes your body. There’s no overlap, so they’re designed to be taken together.
Is it vegetarian? Is it halal?
Creatine monohydrate is synthesized, not animal-derived, and Preserve contains no animal ingredients, so it suits vegetarian and plant-forward diets. It contains no alcohol or pork-derived ingredients. If you follow strict certified-halal requirements, we’re happy to share our current manufacturing details. Just reach out.
How does the subscription work, and can I cancel?
Subscribe & Save delivers your chosen pack every 30 days at 20% off, so you never run out mid-routine and never pay full price, and consistency is exactly what makes creatine work. Skip a shipment, change the date, or cancel anytime from your account in one click. No phone call, no hoops, no guilt. Prefer to try it first? Choose “One-time” at the top of the buy box, but most people start on subscription because it’s the price that keeps the habit going.
When will I see it, and how fast does it ship?
Orders ship promptly from the USA, with free shipping over $50. As for feeling it: your creatine stores fill over about four weeks, so give it a consistent month. And you have a full 60 days, risk-free, to decide it’s for you.
Arrive at your goal strong
Lose the weight. Keep the strength.
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.
Start Preserve from $33.60/tub →Subscribe & Save 20% · cancel anytime · 60-day money-back guarantee