SQ[1] supplement lineup
Designed forRapid Weight Loss

Everything Your Body Needs During Rapid Weight Loss.

Rapid weight loss is hard on the body. It pulls protein from your muscles, depletes critical nutrients, and disrupts your gut. SQ[1] is the research-led system designed to support every system that’s working overtime.*

Try 30 days — love it or it's free
Proudly made in the USA · cGMP certified
No contracts. No commitments. Ever.
4,800+ Reviews
FINALLY A STACK MADE FOR MY WEIGHT-LOSS JOURNEY” · JESSICA MI FEEL LIKE I'M HOLDING MY STRENGTH” · RYAN TI NOTICE MY HAIR FEELS FULLER” · PRIYA SENERGY HOLDS UP THROUGH THE AFTERNOON” · VALERIE OMY DIGESTION FEELS MORE COMFORTABLE” · AMANDA KWISH I HAD THIS FROM DAY ONE” · DAVID LCLEAN INGREDIENTS, FEELS GREAT” · SARAH W
FINALLY A STACK MADE FOR MY WEIGHT-LOSS JOURNEY” · JESSICA MI FEEL LIKE I'M HOLDING MY STRENGTH” · RYAN TI NOTICE MY HAIR FEELS FULLER” · PRIYA SENERGY HOLDS UP THROUGH THE AFTERNOON” · VALERIE OMY DIGESTION FEELS MORE COMFORTABLE” · AMANDA KWISH I HAD THIS FROM DAY ONE” · DAVID LCLEAN INGREDIENTS, FEELS GREAT” · SARAH W

Start Here

Pick your protocol.

Three bundles for three places on the GLP-1 journey. All ship monthly. Bigger protocol, bigger savings.

Not sure? Take the 60-second quiz →
Best First WeekSave $19
SQ[1] Starter

SQ[1] Starter

Your First Week Sorted

Hydration and digestive support — the two things your body needs from day one.

01 Hydrate02 Digest
Delivery planShips monthly · Cancel anytime
Save $19
$79/mo$98
Most PopularSave $57
SQ[1] Core Protocol

SQ[1] Core Protocol

Your First Month

The four essentials: hydration, digestion, nutrition, and muscle preservation. Everything your body loses in month one — put back.

01 Hydrate02 Digest03 Nourish04 Protect
Delivery planShips monthly · Cancel anytime
Save $57
$159/mo$216
Free shipping
Best ValueSave $137
SQ[1] Full Protocol

SQ[1] Full Protocol

The Complete System

All 10 protocols. Every side effect addressed. From day one to month six and beyond.

01 Hydrate02 Digest03 Nourish04 Protect05 Strengthen+5 more
Delivery planShips monthly · Cancel anytime
Save $137
$349/mo$486
Free shipping
30-day money-back Cancel anytime Free shipping $99+ Third-party tested

The Protocol, timed

Your body feels the difference before the scale does.

Many people in rapid weight loss move through the same timeline. The Protocol is sequenced to match it.

Week 1Day one

Hydration support. Digestive comfort.

Many users notice their hydration and digestive comfort improve as electrolytes replenish what's being lost.

01 Hydrate02 Digest

4,800+ Customers. Here’s What They Say.

Tom HVerified buyer
Priya SVerified buyer
Rachel KVerified buyer
David LVerified buyer
Jessica MVerified buyer
Sarah WVerified buyer
Mark RVerified buyer
Eduard Cristea, founder of SQ[1]

A Letter from the Founder

“I watched person after person around me go on Ozempic. Every one of them hit the same wall.”

Between twenty-five and forty percent of the weight lost on a GLP-1 is not fat. It is muscle. Bone. Skin. Connective tissue. SQ[1] is the quiet, numbered defence of everything underneath the weight loss — the thing I wish the people around me had been handed the day their medications started.

Eduard Cristea

Eduard Cristea

Founder, SQ[1]

Read the full letter →
See how SQ[1] compares
SQ[1] Stack

Why Customers Switch to SQ[1] — and Don’t Go Back

Comparison criteriaSQ[1]PendulumGeneric MultiNo Supplement
Formulated for rapid weight loss×××
Supports muscle maintenance during rapid weight loss×Partial×
Helps fill common nutrient gaps during weight managementPartialPartial×
Supports digestive comfort during caloric restriction××
Muscle lifestyleNutrition lifestyleGut Health lifestyleEnergy lifestyle
The Hidden Cost of Your GLP-1 — and How to Stop Paying It

Your GLP-1 is doing its job. But rapid weight loss doesn’t just burn fat — it pulls protein from your muscles, depletes critical nutrients, and disrupts your gut. Every ingredient in SQ[1] is dosed to clinical levels and backed by peer-reviewed research — not pixie-dusted, not theoretical.*

Explore the science

Research-led

Ingredient selection

Every formula built on peer-reviewed research into nutrition during rapid weight loss

15M+

GLP-1 users worldwide

A rapidly growing population focused on nutrition that supports their goals

Therapeutic

Doses, not sprinkles

Active ingredients at doses studied in the research — not token amounts for label claims

Third-party

Tested every batch

Independent lab verification for purity, potency, and contaminants on every production run