Your True GLP-1 Companion

Lose the weight. Keep yourself.

The world's first vegan longevity & GLP-1 companion. 40g of complete plant protein, vegan collagen support and Celltria™ glutathione — in one daily drink. So the journey doesn't cost you your strength or your glow.

★★★★★ 4.9 — loved by early-access members

40g

Plant Protein

3-in-1

Daily Pillars

0g

Added Sugar

100%

Vegan

Longevity & GLP-1 Companion


40g

Complete Plant Protein

Vegan Collagen Support
Glow Complex

Stay strong. Keep your glow.

Daily Sachet · Net 58 g

As seen in

VOGUE

FORBES

WELL+GOOD

GQ

HARPER'S BAZAAR

Two ways to ritual

One formula.
Two formats.

Pick the format that fits your day. Same complete formula in both — 40g of plant protein, the vegan collagen-support complex, and Celltria™ glutathione. Thirty servings per pack.

Longevity & GLP-1 Companion


40g

Plant Protein

30 Servings · 1.74 kg

For your kitchen counter, every morning.

Longevity & GLP-1 Companion


40g

Plant Protein

Daily Sachet · 58 g

For travel, the gym, the office, gifting.

The honest truth

GLP-1 doesn't only take fat.
It takes muscle too.

Semaglutide and tirzepatide are remarkable medications — but body-composition data from the major clinical trials shows the weight you lose isn't only fat. A meaningful portion is lean tissue: the muscle, collagen and structure that holds your body and your face together.

What you're actually losing

In the landmark STEP-1 trial, semaglutide users lost around 15 kg over 68 weeks — but roughly 45% of that loss came from lean mass, not fat. In SURMOUNT-1 with tirzepatide, around 26% of total weight lost was lean tissue.

Across the major trials, the consensus range is 25–40% of GLP-1 weight loss being lean mass. With liraglutide and some real-world cohorts, it climbs higher.

Sources: STEP-1 (Wilding et al.); SURMOUNT-1 (Jastreboff et al.); Neeland et al., Diabetes, Obesity & Metabolism (2024); AHA Circulation (2024).

Composition of weight lost on GLP-1

From the registration trials · proportion of total weight loss

~45%

of weight lost on semaglutide (STEP-1) came from lean mass.

— Neeland et al., 2024

~65%

of GLP-1 users notice facial volume loss — "Ozempic face."

— Dr. Amy Forman Taub, FAAD

~30%

discontinue GLP-1 within the first month — often because of how they feel and look.

— Allurion clinical observation

Why your diet has to do more now

Protein and collagen aren't optional.
They're the rebuild.

When the body shrinks quickly, two things go missing first — and once they're gone, they're far harder to get back without help.

Muscle — why 40g protein matters

GLP-1 medications suppress appetite, which is the point — but that means you're eating less of everything, right when your body needs more protein, not less. Clinicians treating GLP-1 patients now recommend 1.2–1.6 g of protein per kg of body weight per day to preserve lean mass through weight loss.

For a 70 kg adult that's 84–112 g daily. Almost nobody on a GLP-1 hits it. One Longeya delivers 40g in a single drink — roughly 40% of the daily target, in one sitting.

Skin — why collagen matters

Rapid weight loss reduces collagen and elastin — the proteins that give skin structure and bounce. Combined with shrinking facial fat pads, that's what dermatologists describe as Ozempic face: hollowed cheeks, deeper folds, skin that can't retract fast enough.

Dermatologists agree it's harder to reverse than to prevent. Daily vitamin C, amino acids and hyaluronic acid support the body's own collagen synthesis — before the laxity sets in.

The Longeya answer

One serving.
Three lines of defence.

Longeya is engineered specifically for the GLP-1 journey — not collagen alone, not protein alone, but all three things you're at risk of losing, dosed into one daily plant-based drink.

No. 01

Protect Muscle

40g of complete plant protein from a pea + rice blend — full amino-acid profile, ~3.2 g leucine — to preserve lean mass while the weight comes off.

No. 02

Rebuild Skin

A vegan collagen-support complex: vitamin C, glycine, proline, lysine, bamboo silica and vegan hyaluronic acid — fuelling the body's own collagen synthesis for elasticity and bounce.

No. 03

Restore Radiance

A glow complex built on Celltria™ glutathione with vitamin C, biotin and zinc — to revive the dull, gaunt look that rapid weight loss can leave behind.

All in one drink

One serving a day,
all of it covered.

Whether you scoop from the tub or tear a sachet — same complete formula. 58 g mixed into 250 ml of cold water or plant milk. No five-supplement morning.

40g

Complete Plant Protein

Vegan Collagen Support
Glow Complex

 

Net 58 g

 

~225

kcal

0 g

Sugar

2 g

Fibre

3 g

Fat (MCT)

Complete plant protein

Pea isolate + rice concentrate · full amino profile

40 g

Vegan collagen-support complex

Glycine, proline, lysine, vit C, bamboo silica, vegan HA

included

Celltria™ glutathione

USA cGMP, pharma-grade — the radiance engine

250 mg

Vitamin C, biotin, zinc, niacinamide

For skin, hair and the body's collagen synthesis

included

100% plant-based

Vegan · halal · kosher · sugar-free · non-GMO

always

The new standard

Longeya vs.
the rest of the aisle.

Most GLP-1 "companions" do one thing — collagen. Longeya is built for all three jobs the journey actually needs, with the macros to match.

Features & Benefits.LongeyaLeading collagen powderGeneric plant protein
Complete daily protein40 g~0 g~20 g
Vegan collagen-support complex
Glutathione glow complex
100% vegan
Halal & Kosher certified
Designed for the GLP-1 journey
Added sugarvariesvaries

Why it works

Built on ingredients we own.

Most GLP-1 "companions" do one thing — collagen. Longeya is built for all three jobs the journey actually needs, with the macros to match.

A glow engine, not a glow afterthought.

The radiance pillar runs on Celltria™ — our own pharmaceutical-grade L-glutathione, finished and quality-controlled in FDA-registered, cGMP-compliant US facilities. The glow isn't sourced from a competitor — it's vertically integrated.

Every active is openly dosed. No proprietary blends, no hidden levels. What's on the label is what's in the serving.

The Anchor Ingredient

Celltria™

Pharmaceutical-grade L-glutathione, finished and tested in the USA — the radiance engine inside every serving, owned by QuadroPharma and built into the brand.

On the journey

They kept the weight off.
They kept themselves.

Longeya is engineered specifically for the GLP-1 journey — not collagen alone, not protein alone, but all three things you're at risk of losing, dosed into one daily plant-based drink.

"I dropped 14 kg on my medication but my face looked hollow. Three months on Longeya and friends keep asking what changed."

Member — 11 months on GLP-1

"One drink, done. The 40g of protein keeps me full and my skin finally bounced back. No more five different tubs."

Member — 7 months on GLP-1

"I take the sachets when I travel and the tub when I'm home. Vegan, halal, and it actually tastes good."

Member — 5 months on GLP-1

Feel it, or it's free.

Three full months to see your skin hold and your strength stay. If you don't feel the difference, we'll refund you — no questions. Cancel anytime, one click.

Good to know

Questions, answered.

Longeya is engineered specifically for the GLP-1 journey — not collagen alone, not protein alone, but all three things you're at risk of losing, dosed into one daily plant-based drink.

Same formula in both — pick by use case. The tub is for your kitchen counter: 30 servings, scoop included, the best at-home daily format. The sachets are for travel, the gym bag, the office, and gifting: 30 single-serve foil pouches. Many members start with the tub at home and add the sachets for the road.

Clinicians treating GLP-1 patients recommend 1.2–1.6 g of protein per kg of body weight per day to preserve lean mass during weight loss. For a 70 kg adult that's 84–112 g daily. Most GLP-1 patients can't get close — the medication suppresses appetite for everything, protein included. 40g in one drink delivers roughly 40% of that daily target in a single serving. That's not supplementation — that's functional nutrition.

"Ozempic face" is the dermatologist-recognised term for the gaunt, aged look that comes from rapid GLP-1 weight loss: facial fat pads shrink, collagen and elastin decline, and the skin can't retract fast enough. Longeya works on it from three angles at once — protecting muscle with 40 g protein, supporting the body's own collagen production with the vegan collagen-support complex, and restoring radiance with our Celltria™ glutathione complex.

True collagen is animal-derived, so Longeya uses a vegan collagen-support complex (vitamin C, key amino acids — glycine, proline, lysine — bamboo silica and vegan hyaluronic acid) that helps your body build its own collagen. Fully plant-based, halal and kosher.

Longeya is a daily nutritional companion designed to sit alongside your routine. It's not a medication and isn't intended to replace one. As with any supplement, check with your prescriber if you have specific medical questions.

One 58 g serving — from the tub or a sachet — delivers what Longeya is built to do across all three pillars: 40 g of complete plant protein for muscle, a vegan collagen-support complex for skin, and the Celltria™ glow complex for radiance. It complements a balanced diet — it's not a multivitamin and isn't a meal replacement, though many GLP-1 users find it functions like a light meal.

Mix one serving into 250 ml of cold water or plant milk, once daily. Best in the morning. From the tub: one scoop. From the box: tear one sachet. Either way, shake or stir until smooth.

Longeya is produced in FDA-registered, cGMP facilities in the USA, and is a QuadroPharma brand.

The Anchor Ingredient

Don't lose yourself.

Start the daily ritual when we launch — three full months to feel the difference, or your money back. Pick your format.