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Constant hunger and stubborn weight gain? It's not a willpower problem.

Drops that help quiet food noise* and support lean muscle*, plus a simple day-by-day plan to reset the pattern.

4.8 stars from verified customers
150,000+ customers
Made in USA · GMP facility
Third-party tested
90-day guarantee
Thinking about food all day, bloated by dinner, tired even after 8 hours, clothes fitting tighter, running on stress and coffee, tried everything
Sound familiar?

You're doing your best. So why does it feel like your body is working against you?

You may have found yourself thinking:

  • “I think about food all day.”
  • “I'm fine in the morning and bloated by dinner.”
  • “I'm tired even after a full night's sleep.”
  • “My clothes keep getting tighter.”
  • “I've tried everything. Nothing sticks.”
It's not your fault

Your body is listening. For years, it's been getting the wrong signals.

Your body responds to the signals you send it, over and over. Here's what's really going on.

  1. Stress stacks up in your body. Cortisol is your main stress hormone. In short bursts it helps you. But busy days, deadlines and family stress keep your body in fight or flight, so cortisol stays high and keeps stacking. Your body holds on to energy and turns up your appetite. In a Yale study, women who released more cortisol under stress ate more afterwards, especially sweet foods.1
  2. Short sleep turns up hunger. After just two nights of short sleep, the hunger hormone ghrelin rose 28%, the fullness hormone leptin fell 18%, and hunger went up 24%.2
  3. Late meals and grazing confuse your body clock. In a Harvard study, eating the same meals about four hours later in the day left people hungrier, burning calories more slowly, and with fat tissue more primed to store.3
  4. Your body changes from your mid-30s. In your 20s, your body bounces back from late nights, stress and the odd binge. From your mid-30s, it starts responding differently. Muscle, your body's biggest calorie burner, slowly declines, and hormone shifts in the late 30s and 40s move fat toward the middle.4 Less muscle means you burn less at rest, so the same habits start adding up.
  5. Modern food is built to be overeaten. A modern diet is full of processed foods, added sugars and preservatives. In an NIH study, people ate about 500 more calories a day on processed meals than on whole-food meals. Nobody told them to eat more; processed food is simply easier to overeat.5

Put those together and your body settles into a pattern: stressed, hungry, tired, holding on. It gets used to that pattern and defends it. That's why just “eating healthy” alone doesn't seem to work. Your body doesn't need more willpower. It needs a clear new signal so it can stop holding on and release what you don't need.

The Reset

Break the pattern. Let your body reset.

A short, simple pattern break that sends your body a clear new signal. No intense workouts required.

  1. 1

    Quiet the food noise

    Take Complex Diet Drops 3× a day to help control appetite and cravings*, so the plan actually feels doable.

  2. 2

    Send your body a new signal

    Follow the day-by-day plan: real food at set times, at the calorie level that fits you. No intense workouts, no complicated tracking. As the old pattern breaks, customers tell us bloat eases, energy picks up and clothes start fitting better.

  3. 3

    Keep what matters

    Lean muscle keeps you strong and helps your body burn energy, so it's worth keeping. Complex ProMAX joins in a later phase to support lean muscle*. Then phases 3 and 4 guide you into a long-term, sustainable routine.

Take your drops. Follow your phase. The plan tells you what to eat.Your VIP app guides you every step, so you're not left guessing what to do next.

Start my Reset →90-day money-back guarantee · Free US shipping
BioSource VIP member app showing Day 2 of 64, Extended Round
In our customers' words

How the Reset changed things for them

Woman on a sunny couch, laughing at her phoneModel shown
Food noise

The constant food thoughts go quiet

CCarole K.Verified BuyerMay 2026
★★★★★

Within just a couple of days I noticed a difference. The “food noise” has substantially finished and I'm no longer constantly thinking about eating.

Purchased: Complex ProMAX
Woman laughing while walking her dog on a fall morningModel shown
Energy

Steady energy, no crash

VVirginia O.Verified BuyerOct 2025
★★★★★

These drops delivered! Helped to curb my hunger between meals, and a bonus energy boost! The included quickstart guide helped me with getting back on track.

Purchased: Complex Diet Drops
Woman smiling as she buttons a jean jacket in her bedroomModel shown
Bloat

Lighter by dinner, not puffier

HHeidi G.Verified BuyerMay 2025
★★★★★

I always come back to these whenever I want to get back to baseline and feel like myself again. Bloating and distracting cravings are gone, mind stays clear and energy is steady.

Purchased: Complex Diet Drops
Man checking his meal plan on his phone while picking broccoli at the grocery storeModel shown
The plan

DIY is hard. The plan makes it easy.

DDavid G.Verified BuyerJan 2025
★★★★★

The drops came with a whole diet plan guide and looks like a great product with a comprehensive easy to follow guide for successful dieting.

Purchased: Complex ProMAX

What customers tell us they notice

Food noise quiets down
Less bloating and puffiness
Steady energy
Clothes fit better

Based on customer reviews. Individual results vary. Some reviewers received a free gift for sharing feedback.

Start my Reset →90-day money-back guarantee · Free US shipping
What to expect

Your Reset, phase by phase

4 phases to break the pattern and teach your body a new one.

Phase 1 · Days 1–2

Prime

Your body starts getting the right signals. The routine takes about a minute a day.

★★★★★

“Within the first few days, the need to snack throughout the day dissipated.”

RRoslyn R.Verified Buyer
Phase 2 · Days 3–41

Reset

The plan does the heavy lifting. Cravings feel easier to manage. Bloating diminishes.

★★★★★

“I'm eating less, feeling full quicker, and less bloated.”

LLindsey P.Verified Buyer
Phase 3 · Days 42–64

Stabilize

Reach your goals and learn how to lock in your results.

★★★★★

“Super easy to use and navigate, especially with the book it comes with!”

MMichelle S.Verified Buyer
Phase 4 · Day 65+

Live Life

Keep the right signals going with the VIP app. Show off the new you, or start another Reset for more progress.

★★★★★

“They give me energy to maintain my weight as well!”

SSharon A.Verified Buyer

Individual results vary. Some reviewers received a free gift for sharing feedback.

What's inside

Two formulas, one for each stage of your Reset

No hormones, no injections, no harsh stimulants. Every ingredient is on the label.

Why two formulas?

The body changes quickly once it gets the right signals. Each formula is designed to support the body's adaptation at each phase of the Reset.

Complex Diet Drops
From day one

Complex Diet Drops

Adaptolin ComplexMaca, Grape seed, Guarana, African mango, Eleuthero, Astragalus, Green tea, Gymnema, Coleus forskohlii, Capsicum, Grapefruit seed, Panax ginseng, Fucoxanthin
Amino acid & mineral complexL-Glutamine, L-Tyrosine, L-Arginine, L-Carnitine, L-Ornithine, L-Tryptophan, GABA, Beta-Alanine, Frambione, Monoammonium glycyrrhizinate, Chromium picolinate
Phases 1 & 2
Complex ProMAX
Later phase in your Reset

Complex ProMAX

ProMAX Activation ComplexMaca, African mango, Caralluma fimbriata, Ecklonia cava, Green tea, Rhodiola rosea, Pygeum, Astragalus, Garcinia cambogia, Panax ginseng, Guarana, Gymnema
Amino acid & mineral complexL-Glutamine, L-Arginine, L-Carnitine, L-Ornithine, Tyrosine, Tryptophan, GABA, Beta-Alanine, Chromium picolinate
Phases 2 & 3
Compare

Why the BioSource guided Reset works better

The ResetDieting aloneWeight-loss injections
Day-by-day plan✓——
Meal plans and recipes✓DIY—
Cravings support*✓—✓
Lean muscle support*✓——
A plan for after✓——
No prescription or needles✓✓—
CostFrom $1.42/day$0$300+/month
Money-back guarantee90 days——
Start my Reset →90-day money-back guarantee · Free US shipping
Choose your kit

Everything you need, in one box

Up to 60% off, free gifts and free shipping.

We did your savings math for you

What everything costs if you bought it separately.

Values use each item's regular single price.

Every kit includes

  • The full system: products and instructions for every phase
  • VIP member app: tracking, meal plans, recipes
  • Gourmet Weight Loss Cookbook
  • Real-person support from our US team
You're protected

Try it for 90 days. If it's not for you, get your money back.

New customers get a full 90 days from delivery. If you're not happy, contact our support team and send back your bottles, opened or not, for a full refund of your purchase price. You cover return shipping. Full guarantee terms

Less than 1% of customers ever use our guarantee.
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FAQ

Still not sure?

Here are the top questions we get.

Not sure which kit to choose?Take our 30-second quiz to get your match.
How long until I notice a difference?

Many people notice cravings feel easier within the first week. Give it one full Reset for your best results. Individual results vary.

Which kit should I choose?

The Complete Reset Kit is what we recommend if you're more than 15 lbs from your goal, or you want extra time to make the habits stick: it has 126 days of Complex Diet Drops and Complex ProMAX, plus a free Essential B Complex. The Starter Reset Kit covers one full 64-day Reset. Still unsure? Take the 30-second quiz above.

Is there caffeine or a stimulant?

No harsh stimulants. Complex Diet Drops and Complex ProMAX contain trace amounts of natural caffeine from green tea and guarana, too small to measure.

Do I have to starve myself?

No. You choose the calorie level that fits you, and the drops help with the hunger. Real food, simple meals.

Do I have to work out?

No intense exercise needed. Normal daily movement like walking is plenty. The plan and the drops do the heavy lifting.

What do I do when the Reset is over?

Phases 3 and 4 walk you back to a long-term, sustainable lifestyle so you keep your results. Your VIP app stays with you, and you can start another Reset any time.

Is it for men too?

Yes. The protocol works the same way for men and women, and Complex ProMAX supports the lean muscle many men want to keep while their eating changes.*

Can I take it with medications?

Ask your doctor before starting any supplement, especially if you take prescription medication or are pregnant or nursing.

Is this a subscription?

No. You pay once. Nothing ships again unless you order it.

Start my Reset →90-day money-back guarantee · Free US shipping