Will this make me jittery or anxious?

No. There is no caffeine and no stimulant of any kind in it. That is the main reason women switch to it from a thermogenic — you can take it with dinner and still sleep.

What is CLA, and where does it come from?

CLA is conjugated linoleic acid, a fatty acid that occurs naturally in beef and dairy. Ours comes from safflower oil, standardized to 80% CLA. Each serving gives you 2,400 mg of active CLA from 3,000 mg of safflower oil, printed on the label rather than hidden in a blend.

Will I lose weight on the scale?

Maybe less than you expect, and that is the point. In the year-long trial, body fat fell while lean body mass went up slightly — so the number on the scale moved less than the shape did. Use the tape measure and the photos, not the scale.

Do I have to use the app?

No. The softgels work on their own. But the app is free with your subscription and it holds the calorie target, which is what decides how quickly the fat comes off.

How long before I see a difference?

Give it three months. The clinical trials ran twelve weeks and longer before measuring a change in body composition, and most women notice their clothes before they notice the scale.

Rarely, and that is deliberate. Every UNALTERED formula is dosed below the levels the National Toxicology Program identifies as a concern, so every ingredient sits well inside its established safety range. Side effects are very rarely reported. A small number of women notice mild stomach upset in the first week; taking it with a full meal rather than on an empty stomach sorts that out. Talk to your doctor before starting if you take medication or have a health condition.

Is it third-party tested and assembled in the USA?

Yes — this product is assembled in the USA, in a cGMP-compliant, FDA-registered facility. And each batch is third-party tested for label accuracy, banned substances, heavy metals, and microbial contaminants.

Slim Tighten Tone Belly Fat Burner for Women

Name: UNALTERED Slim Tighten Tone Belly Fat Burner for Women
Brand: UNALTERED Athletics
Price: 62.98 USD
Availability: InStock

Stimulant-Free CLA — 3,000 mg from Safflower Oil

Three softgels a day to help burn stored belly fat while holding onto the lean muscle that keeps you toned.^* No caffeine, no jitters, nothing that keeps you up at night.

How Committed Are You?

Pick how long you're giving it, then choose how you want it delivered.

1 MonthTry it for a month$25.49 a bottleMost chosen3 MonthsI'm committed$20.99 a bottle6 MonthsI'm all in$17.99 a bottle

Save 30% on every order — not just the first

Subscribe & Save

3 bottles, delivered every 12 weeks

$62.98

$89.97

$0.70 a day

Free shipping, every order
The UNALTERED app included — $15/mo on its own. Learn more
Skip, pause or cancel in two taps
90-day money-back guarantee

One-Time Purchase

3 bottles, delivered once

$89.97

$1.00 a day

Order today, arrives by Saturday, October 10

90 days. Not happy, don't pay. Cancel or pause anytime, in two taps.

Third-Party
Tested
Assembled
in the USA
Stimulant
Free
90-Day
Guarantee
Gluten Free
Non-GMO

Helps your body burn stored belly fat^*
Helps you hold the lean muscle that keeps you toned^*
Works around the clock, even while you sleep^*
No caffeine, no jitters, no afternoon crash^*
Third-party tested, every batch

Clinically studied ingredient0 mg caffeineAssembled in the USA

What's actually happening

Why Your Shape Changed Before the Scale Did

From your mid-thirties you start losing lean muscle and storing more fat around the middle — often while the number on the scale barely moves. That's why the jeans fit differently when nothing else has changed.

2.2″

The average waist gain in women over six years through the menopause transition.^†

Nearly 3×

The rise in belly fat as a share of total body fat across that transition.^‡

^† Sowers M et al., Study of Women’s Health Across the Nation (SWAN). 800 women followed over six years through the menopause transition; average waist increase 5.7 cm (2.2 in) and fat mass increase 3.4 kg. ^‡ Kodoth V, Scaccia S, Aggarwal B. Adverse Changes in Body Composition During the Menopausal Transition and Relation to Cardiovascular Risk: A Contemporary Review. Womens Health Rep 2022;3(1):573–581. Visceral fat rises from roughly 5–8% to 15–20% of total body fat across the transition.

Woman in her forties fastening jeans at the waistband, photographed at waist level

−8.7%

less body fat in the CLA groups than in the placebo group — while participants ate an unrestricted diet.

The research, and the bottle

What the Research Found

+1.8%

Lean body mass

Went up in the CLA group, not down. That’s the difference between losing weight and losing shape.^§

0 mg

Caffeine and stimulants

Nothing to cycle off, nothing to build a tolerance to, nothing that touches your sleep.

2,400 mg

Active CLA per serving

From 3,000 mg of safflower oil standardized to 80%. Printed on the label, not hidden in a blend.

^§ Gaullier JM et al., Am J Clin Nutr 2004;79:1118–25. Randomized, double-blind, placebo-controlled study of 180 healthy overweight adults (BMI 25–30) taking 3.4–3.6 g/day active CLA on an unrestricted diet for 12 months. Results reflect the dose used in that study. Individual results vary.

What to expect

What to Expect in Your First 90 Days

Week 1
Get your personalized plan
Three softgels with a meal, same time every day. Open the UNALTERED app, answer six questions and it builds your calorie and protein target. Take a starting photo and measure your waist. You'll want both later. Free with any subscription.
Weeks 2 to 4
Get consistent
Don't skip a day. Snap a photo of your meals as you go and the app logs them for you. Most women are surprised here — not by the scale, but by how much they were actually eating.
Weeks 4 to 8
The window the research used
This is where the clinical trials started measuring changes in body composition. Keep taking it. Keep logging. Your waistband will notice before the scale does, which is why you took that photo.
Week 12
Compare
Put the photos side by side in the app and measure your waist again. Three months is the shortest honest test of anything like this.

Individual results vary. Use as directed alongside a sensible diet and regular activity.

Ships freeCancel anytime90-day guaranteeFree app access

Included free

Your Free Weight Loss Plan, Included

The softgels do their job on their own. But you’ll get there faster if you know what you’re eating — and you’ll stick with it if you can see it working.

That's what the UNALTERED app is for. It's the plan, the tracker and the proof, and it's yours free for as long as you subscribe.

Photograph your food

Point your phone at a plate. Calories and protein counted. No weighing chicken, no searching a database.

Workouts that fit a real week

Strength and cardio sessions you can do at home or at a gym. Saved as templates, so you're not deciding every time.

Progress photos side by side

The mirror lies over seven days and tells the truth over ninety. The app lines them up for you.

One tap to log your supplements

Your UNALTERED products are already in there. Tap and you're done.

The plan is included. So is the app that tracks it.

Side by side

How We Compare

Most fat burners for women are caffeine with a marketing budget. Here's the difference, laid out.

UNALTERED Slim Tighten Tone compared with a typical fat burner for women
	UNALTERED	Typical women's fat burner
Stimulants	None	200–400 mg caffeine
Jitters and anxiety	No	Commonly
Dose on the label	In full	Hidden in a "blend"
Nutrition plan	Included	Not included
Tolerance	None	Cycle on and off
Guarantee	90 days	30 days, unopened
Third-party tested	Every batch	Varies

The other half

Burning the Fat Is Only Half the Job

The hardest part of a calorie deficit isn’t the first week. It’s the evening in week three when you’ve done everything right all day and you’re standing in front of the fridge anyway.

Most plans don’t fail on knowledge. They fail at 9pm.

Appetite Control is 2,000 mg of glucomannan and 1,000 mcg of chromium. The fibre expands with water before a meal so you eat less without deciding to.

5.5 lbs

average weight lost in 8 weeks by adults taking glucomannan — the fibre in Appetite Control that expands with water to help you feel full — with no change to their usual diet or exercise.^¶

Both products, one subscription.

^¶ Walsh DE, Yaghoubian V, Behforooz A. Effect of glucomannan on obese patients: a clinical study. Int J Obes 1984;8(4):289–93. 20 adults, 8 weeks, 3 g/day glucomannan taken with water before meals; usual diet and exercise maintained. Results reflect the dose used in that study. Individual results vary.

UNALTERED Slim Tighten Tone and Appetite Control for Women bottles

Quality control

Third-Party Tested, Every Batch

Every batch goes to an independent lab before it reaches you.

Independent lab · Before release

Label accuracy

Every ingredient verified against the amount printed on the bottle.

Heavy metals

Screened for lead, arsenic, cadmium and mercury.

Banned substances

Checked against banned-substance panels before release.

Microbial contaminants

Tested for bacteria, yeast and mould.

Our promise

Not Happy? Don't Pay.

The 90 Day Money Back Guarantee

We work hard to build products that actually get results. But we know that sometimes a product just isn't the right fit, and that's fair enough.

So if for any reason you're not completely happy with your order, let us know and we'll give you your money back. Simple as that.

How it works

1Give it a fair run. Take it daily, as directed.
2Not completely happy? Send us an email.
3We refund your order. No forms, no return shipping, no argument. You have 90 days from the day you order.

We'd rather lose the order than have you sitting on a bottle you don't want. Ninety days is long enough to know either way.

Oscar & Zach MuñozFather & Son · Co-Founders, UNALTERED

Not happy? Don't pay. You have 90 days to decide.

Customer Reviews

Before You Buy

UNALTERED Slim Tighten Tone compared with a typical fat burner for women
	UNALTERED	Typical women's fat burner
Stimulants	None	200–400 mg caffeine
Jitters and anxiety	No	Commonly
Dose on the label	In full	Hidden in a "blend"
Nutrition plan	Included	Not included
Tolerance	None	Cycle on and off
Guarantee	90 days	30 days, unopened
Third-party tested	Every batch	Varies

4.8

Based on 2805 ratings

5 stars

2503

4 stars

164

3 stars

2 stars

1 star

Sort

Rating

Search reviews

Show ratings without a review

Kathryn Mikesh
Jun 4, 2026
Blanca
Jun 4, 2026
ELIZABETH
Jun 1, 2026
j
May 31, 2026
Nicole
May 16, 2026
Angela
May 8, 2026
Guadalupe mulgado
Apr 22, 2026
Daphney Johnson
Apr 18, 2026
Tracey
Apr 13, 2026
Tessa
Apr 9, 2026

Slim Tighten Tone Belly Fat Burner for Women

How Committed Are You?

Why this belly fat burner works differently

Benefits for women over 35

Ingredients: CLA from safflower oil

How to use it

Third-party tested for purity

Shipping, subscription and cancelling

Why Your Shape Changed Before the Scale Did