Strong bones
Calcium, magnesium, and vitamin D3 + K2 — support for the bones rapid weight loss can strain.
Lose the weight keep everything else.
The shot melts the fat. It also takes your hair, your energy, your muscle, and the face you recognize. Mainstay is the daily gummy that puts back what the weight loss tries to take with it.
Start for $20Sugar-free · Made for GLP-1 · Cancel anytime
Clean ingredients0g sugarThird-party testedVegan pectinCancel anytime
AS SEEN IN
Nobody warned you the fat wouldn’t be the only thing you’d lose.
The hair in the shower drain. The 2pm crash you never used to get. The queasy mornings. The cheeks that went hollow. The muscle and bone that quietly leave with the fat. When you eat 30% less, your body runs on 30% less — fewer of the nutrients that kept your hair full, your energy steady, your bones strong, and your stomach settled.
The weight loss is working. Everything else is paying the bill.
It doesn’t have to be a trade.
Two gummies a day, built for exactly what a GLP-1 appetite leaves behind — so you come out the other side lighter, not hollowed out.
Keep your hair.
The shedding scares people more than the scale ever did. Mainstay packs in the biotin, zinc, and building blocks rapid weight loss burns through fastest — so the hair you’re losing weight to feel good about is still there when you look up.
Keep your energy.
That afternoon wall isn’t you getting lazy — it’s your tank running on fumes. Methylated B12, B6, and folate put the floor back under your day.
Settle your stomach.
The nausea nobody warned you about — the queasy mornings before you’ve even eaten. Real organic ginger, every single day, for the stomach a smaller appetite leaves unsteady.
It comes for more than the fat.
Rapid weight loss strains your bones, your muscle, and your skin too — so Mainstay supports all three.
Muscle support
Vitamin D supports normal muscle function — made to work alongside your protein and training.
Glowing skin
Biotin and zinc to support the skin and nails a hollowed-out face leaves behind.
Two gummies. Every morning. That’s the whole ask.
No pill organizer. No powder. No shaker bottle to wash. The easiest thirty seconds of your day — and because it’s sugar-free (allulose + monk fruit, never sugar), it fits the exact way you’re eating now. No spike, no guilt, no reason to skip it.
- Methylated B12
- B6 + Folate
- Vitamin D3 + K2
- Calcium
- Magnesium
- Zinc
- Biotin + hair blend
- Organic ginger
- Sugar-free
- Vegan pectin
Loved on the journey.
4.9
2,721 reviews
“I feel quite connected with them — truly the best one. The team made me feel supported every step of the way.”
Elena Morales, 34
Latina (Colombian-American)
“I feel quite energized with no more pain or stress. This has been a game changer for me.”
Jamal Washington, 41
Black (African-American)
“I feel quite settled — no more stomach issues or queasy feelings. Such a relief!”
Priya Sharma, 27
South Asian (Indian)
“I feel quite good about the sugar-free options; they actually taste great. Makes the journey enjoyable.”
Hiroshi Tanaka, 52
East Asian (Japanese-American)
“This was the easiest part of the whole journey. Everything just flowed naturally.”
Isabella Rossi, 39
White (Italian-American)
“I only wish I'd started this one sooner. Better late than never, but what a difference!”
George Thompson, 68
White (American)
Your first month, half off.
$20$45first month
Then $45/month. Ships monthly. Cancel anytime, one tap, no hoops.
Start for $20
Free shipping · Sugar-free · Third-party tested · Cancel anytime
I built this because I needed it.
I went on a GLP-1 and the weight came off — but so did my hair and my energy. I searched everywhere and nothing on the shelf was built for this. So I built it myself.
Mainstay is the daily support I wish I’d had from day one. Two simple gummies that help protect your hair, energy, muscle, and glow while the weight comes off.
Lose the weight. Keep everything else.
Before you start.
Mainstay is a daily supplement designed to sit alongside your routine — not a medication. As with anything new, run it by your provider, especially if you manage other conditions.
No. Mainstay is an over-the-counter daily supplement — no prescription, no pharmacy. Order it like anything else and it ships straight to your door.
Yes — 0g of sugar. We use a vegan pectin base and natural green-apple flavor, so it fits the way you’re eating now.
Most people feel steadier energy within the first couple of weeks. Hair, skin, and nail support build over a few months of consistent daily use.
Always. There’s no lock-in — pause, skip, or cancel your subscription in a couple of taps. No emails or phone calls required.