Fimavyn lists ten ingredients. Six have a stated dose: zinc 11 mg, chromium 100 mcg, alpha lipoic acid 150 mg, green tea 150 mg, berberine HCl 100 mg and resveratrol 40 mg. The other four (milk thistle, cayenne, Asian ginseng and banaba leaf) share a 112 mg “proprietary blend” with no individual amounts. Human studies on these ingredients report small or mixed average changes in weight, and none of them tested this exact formula.
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What is in Fimavyn, ingredient by ingredient?
The maker sells Fimavyn (“Metabolic Activation”) on its official site, fimavyn.com. It comes as 60 vegan capsules. The serving is two capsules a day, which gives 30 servings per bottle. The maker says the full Supplement Facts panel is on the product page. The right-hand column below summarizes the human research the maker itself cites for each ingredient.
| Ingredient | Amount listed | What the cited human research says |
|---|---|---|
| Zinc | 11 mg | Reviews of randomized trials find small, mixed changes in weight-related measures. Whether they matter in practice is uncertain. |
| Chromium | 100 mcg | Same pattern as zinc: small, mixed and dependent on the situation studied. |
| Alpha lipoic acid | 150 mg | Meta-analyses of randomized trials report small average changes in body weight and BMI. The authors stress limitations and the need for more research. |
| Green tea (extract) | 150 mg | Systematic reviews report small average changes in weight-related measures. Certainty, extract makeup and dose vary a lot between studies. |
| Berberine HCl | 100 mg | Meta-analyses report mixed results for weight, BMI and waist size. |
| Resveratrol (200:1 extract ratio, per the label artwork) | 40 mg | Human meta-analyses report small and sometimes inconsistent effects on body measurements. Results vary by dose, duration and population. |
| Botanical blend: milk thistle, cayenne (Capsicum annuum), Asian ginseng, banaba leaf | 112 mg total, no split given | The maker does not attribute a clinical effect to any single botanical, because the individual amounts are not declared. |
What does that add up to?
Every row says small, mixed or inconsistent. No single ingredient stands out as a proven weight-loss driver. The maker's own page says ingredient studies are not proof that the finished formula gives the same results. It also says study forms, doses, populations and durations can differ from what is in the capsule. Treat Fimavyn as a modest add-on at best, not as the thing that moves the scale.
What does the 112 mg blend hide?
A proprietary blend gives you one total weight for several ingredients. You can't see how much of each one you get. If the 112 mg were split evenly, each botanical would get 28 mg. That is far below the 150 mg doses of green tea and alpha lipoic acid. The real split could be very different, and you can't tell from the panel. That is why the research table can't match a study dose to any of the four. For a closer look at how blends work, see this JellyFil proprietary blend breakdown.
Is Fimavyn a vitamin supplement?
No. None of the ten listed ingredients is a vitamin. Zinc and chromium are minerals, and the rest are plant or plant-derived compounds. Questions about which vitamins are essential, which are synthetic or which carry toxicity risk don't map onto this label. For Fimavyn, the practical version of the “synthetic or natural” question is: ask support which chemical forms of zinc and chromium are used. The maker lists “other ingredients” on the bottle label too. Check them if you avoid certain additives, since the product page text doesn't spell them out.
Side effects and who should check with a clinician first
The product page text doesn't list side effects. The maker's FDA disclaimer says to consult your physician if you are pregnant, nursing, taking medication or have a medical condition. The maker's FAQ also has a “Who should not use this product?” entry, so read it on the product page. The formula has several active plant extracts, so ask your pharmacist or doctor before combining it with any prescription. Your clinician is also the right person to decide anything about your medications.
How much does Fimavyn cost, and what is the refund policy?
Prices as of October 2, 2026; check the checkout for today's. The maker says this is a one-time purchase, not a subscription.
| Package | Price | Per bottle | Shipping (continental U.S.) |
|---|---|---|---|
| 1 bottle, 30 days | $69 | $69 | $9.99 |
| 3 bottles, 90 days | $177 (save $30) | $59 | Free |
| 6 bottles, 180 days | $294 (save $120) | $49 | Free |
The maker's guarantee page promises a minimum 60-day money-back guarantee with no need to give a reason. To ask for a refund, email [email protected]. Contact support before you send anything back, because return authorization may be required. The refund page says you pay return shipping unless the seller provides a prepaid label. The maker says every package also includes four digital guides, delivered after purchase. Shipping covers the continental U.S. only, and the maker estimates 3 to 5 business days after processing.
Who is behind it, and how do you check?
The product page says ClickBank is the retailer. It lists a ClickBank phone number (1-800-390-6035) for order support, and the seller's email for product questions. The contact page lists a responsible business in Brazil and a separate U.S. fulfillment and returns facility in Colorado. The maker states that no customer testimonials are published on the page. Some of the maker's policy pages carry wording that reads like pre-launch text, such as “preview terms” and purchases that “may later” go through a checkout. Before paying, confirm that the checkout screen itself shows the 60-day guarantee, the shipping charge and one-time billing.
Why am I not losing weight even though I eat well and exercise?
This is the question most people bring to a product like Fimavyn, so here is what independent sources say. A scoping review in the Journal of Health, Population and Nutrition found wide differences between people in weight loss, even when adherence, sex, activity and starting weight were accounted for. Factors that shift the result include previous weight-loss attempts, sleep, meal timing and medications.
| Common reason | What the sources say |
|---|---|
| The scale hides fat loss | Healthline notes you can gain muscle while losing fat, especially after starting exercise on a high-protein diet. It suggests measuring waist circumference and body fat monthly. |
| Metabolism slows as you lose | The review above says resting metabolic rate can drop within days of an energy deficit, more than body size alone explains. WebMD says your metabolism also slows as you lose weight. |
| Hormones push back | University of Utah Health says hormones and brain signals in the hypothalamus work against permanent weight loss. It also describes leptin resistance in many overweight people. |
| Short sleep | In a two-week study in the review, people sleeping 8.5 hours lost more fat than those sleeping 5.5 hours (1.4 kg vs 0.6 kg). WebMD says poor sleep raises the hunger hormone ghrelin. |
| Stress | WebMD and Baylor Scott & White both link stress and cortisol to fat storage and cravings. |
| Medical conditions and medicines | Hypothyroidism, sleep apnea, insulin resistance and some medicines can make weight loss harder. This is a conversation for your doctor. |
| Eating more than you think | Healthline says people who track food, with a diary or photos, tend to lose more weight. |
Why is it so hard, and why does my body hold on to weight?
It isn't only willpower. University of Utah Health says most people regain about 30 to 35 percent of lost weight within a year. It adds that cleanses, fad diets and crash diets don't help most people over the long term. The scoping review cites research that only about 20 percent of overweight people keep off at least 10 percent of their starting weight for a year. It also says even a modest 5 to 10 percent loss improves blood sugar, blood pressure and cholesterol. Aim for a plan you can stick to. Across popular diets, the review found that how closely people followed the diet predicted weight loss better than which diet it was.
How do I kick-start weight loss and burn fat?
There is no switch. The sources point to the same basics:
- Set a sustainable deficit. The review says a 500 to 750 calorie daily deficit is widely studied and easier to follow. Healthline says most people lose about 1 to 2 pounds a week, and WebMD says there is no safe way to lose weight fast.
- Eat enough protein and mostly whole foods. Healthline says protein helps you feel full and helps preserve energy expenditure, and whole foods are more filling than highly processed ones.
- Add strength training. Baylor Scott & White says too much cardio with no strength work makes it hard to build muscle. Healthline says aerobic and resistance exercise both help, but exercise alone works less well without a diet plan. You also can't choose where fat comes off.
- Protect your sleep and manage stress. Both showed up in several sources above.
- Get checked if nothing moves. Baylor Scott & White suggests starting with your primary care doctor, who may refer you to a dietitian.
What is the number one worst food for weight gain?
No source names a single worst food. Two categories stand out. Healthline calls sugary drinks among the most fattening items in the food supply, because your brain doesn't make you eat less elsewhere to make up for the calories. In a trial described in the scoping review, an ultra-processed diet raised calorie intake by about 500 calories a day compared with an unprocessed diet.
Before you order
- Ask [email protected] whether the 40 mg of resveratrol is the extract weight (the label shows a 200:1 ratio) or the resveratrol itself.
- Ask how much caffeine the 150 mg of green tea extract provides, and whether it is standardized.
- Ask which forms of zinc and chromium are used, and for the full “other ingredients” list.
- Ask for the warnings printed on the bottle label, especially if you take medication.
- Confirm the checkout shows the 60-day guarantee, return-shipping terms and one-time billing before you pay.
If you are weighing other weight-loss supplements, our AlkaSlim review covers a similar question, and the Glyco Harmony dose math shows how to check a label's numbers.
By TotalHealthRD.com Nutrition Team