Official product information
Maxforce Side Effects and Interactions to Know
No side-effect list is printed, so this page is the federal record plus the two paragraphs the jar prints.
Written and reviewed by the Maxforce Editorial Desk · Last updated October 29, 2026
Quick answer
The Maxforce jar prints a warning panel, and two of its ingredients carry extra cautions.
NCCIH lists liver notes for green tea extract and ashwagandha and an interaction with the beta-blocker nadolol. Ask a doctor first if you take nadolol or have liver concerns.
2 of 9 ingredients with a federal consumer page
Where the safety information on this page comes from
Two federal pages, one consumer update, one professional fact sheet, and five ingredients with nothing published at all.
No side-effect list is printed on this jar, and none is required to be. What the jar does print is a genuine warning panel, a complete storage line and a complete other-ingredients line — more than several products in this category manage. This page uses those, then fills the rest from the federal record. Two of the nine ingredients have a federal consumer page: green tea extract and ashwagandha. Caffeine is covered by FDA’s consumer update, L-arginine only inside an NIH ODS health-professional fact sheet on exercise, and five have no federal page at all.
One piece of arithmetic sets the scale for everything below. FDA requires a proprietary blend to list its members “Indented underneath the name of the blend, you must list the ‘other dietary ingredients’ in the blend, either in a column or linear fashion, in descending order of predominance by weight.” Caffeine is listed fifth with 5 mg printed beside it, so every row below it weighs 5 mg or less, and because the four rows above it must each reach 5 mg the first-listed muira puama extract is no more than 62 mg. Read every caution below with those bounds attached.
5 mg or less, rows six to nine
The two ingredients with federal pages
Green tea extract and ashwagandha carry the only ingredient-level safety notes in the federal record for this formula.
Green tea extract, row four
The federal page carries the liver note this category is most often asked about, and NCCIH’s wording is specific about the form: “Although uncommon, liver injury has been reported in some people who used green tea products, primarily green tea extracts in tablet or capsule form.” Tablets and capsules. This is a chewable gummy and the row is bounded between 5 mg and 62 mg, so the caution is context rather than alarm.
The side effects the same page names for the supplement form are “Side effects of green tea extract supplements include nausea, constipation, abdominal discomfort, and increased blood pressure.” And it names one drug interaction, the most actionable sentence on this page for anyone on heart medication: “Green tea at high doses has been shown to reduce blood levels and, therefore, the effectiveness of the drug nadolol, a beta-blocker used for high blood pressure and heart problems.”
Ashwagandha, row six, capped at 5 mg
NCCIH: “Although it is rare, there have been a number of cases that link liver injury to ashwagandha supplements.” Rare, and reported at amounts far above a row capped at 5 mg. The caution still belongs here, because a reader taking ashwagandha from a second product as well is adding two unstated amounts together.
The avoid-list on the same page is longer, and one entry matters unusually much on a product marketed to older men. NCCIH: “Ashwagandha is not recommended for people who are about to have surgery, or for those who have autoimmune or thyroid disorders.” And: “Because ashwagandha may increase testosterone levels, people with hormone-sensitive prostate cancer should avoid its use.”
Two of the nine also pull opposite ways on blood pressure: NCCIH lists increased blood pressure among green tea extract’s side effects, while NIH ODS reports “At doses of 9–30 g/day, the most commonly reported adverse reactions are gastrointestinal discomfort, such as diarrhea and nausea, and slightly reduced blood pressure.”
5 of nine with nothing federal to read
Five ingredients with no federal page, and what that does and does not mean
Absence of published guidance is not evidence of safety, and not evidence of harm.
A hatched track means no federal consumer page exists for that ingredient — not that it is unsafe, and not that it is safe.
Be precise about those five hatched rows, because this is the sentence the category gets wrong in both directions. No federal page means the absence of published federal guidance. It does not mean the presence of safety. Muira puama, maca, catuaba, tribulus terrestris and horny goat weed have no consumer page on NCCIH, NIH ODS or MedlinePlus, and MedlinePlus’s own herb database was withdrawn on 29 July 2025.
So there is no federal side-effect list for those five, no interaction note and no pregnancy statement in either direction. Not a page saying the answer is no. No page. NCCIH describes the reason without softening it: “The amount of scientific evidence on dietary supplements varies widely—there is a lot of information on some and very little on others.” The cost is practical: a pharmacist asked to check an interaction wants the names and the amounts, and this label supplies all nine names and one amount.
400 mg a day, FDA’s figure for healthy adults
The caffeine, the sugar, and the statement that is not printed
One small declared stimulant, three grams of added sugar a day, and no “contains” line on the label.
The caffeine, in proportion
Caffeine is row five and the only member of the blend with its own printed figure: 5 mg. Against FDA’s reference point it is negligible: “For most adults, the FDA has cited 400 milligrams a day — that’s about two to three 12-fluid-ounce cups of coffee — as an amount not generally associated with negative effects.” One eightieth of 400, and the label deserves credit for itemising it rather than folding it into the total. Two qualifications: FDA notes “However, there is wide variation in both how sensitive people are to the effects of caffeine and how fast they eliminate it from the body.”, and the green tea extract above it carries caffeine of its own at an undeclared amount.
The sugar
Every gummy carries 3 g of sugar, and the panel says all 3 g of it is added sugar — 6% of the Daily Value, in 10 calories. The other-ingredients line names corn syrup and cane sugar as the first two items, which is where it comes from. One a day, every day, is the instruction. FDA: “The Daily Value for added sugars is 50 grams per day based on a 2,000 calorie daily diet.” MedlinePlus: “Men should get no more than 150 calories per day from added sugar (about 9 teaspoons or 36 grams of sugar).” So 3 g a day is about 8.3% of the 36 g cited for men — this desk’s arithmetic on federal figures, not a federal statement. In fairness: 3 g is roughly three quarters of a teaspoon, it is declared correctly on the panel with its own Daily Value, and a gummy has to be made of something. This is a note, not a finding.
The missing allergen statement
There is no “contains” allergen statement on this label, so the gluten-free and dairy-free marks rest on inference rather than on a declaration. The compensation is the other-ingredients line, printed in full: Corn Syrup, Cane Sugar, Water, Apple Pectin, Sorbitol Liquid, Natural Flavors, Citric Acid, Sodium Citrate Dihydrate. If you are avoiding something, that line tells you more than either mark does.
1 database, one date, one caveat
Category context, given carefully
What FDA publishes about this category, and what a dated database search does not establish.
FDA publishes notifications about supplements sold for sexual enhancement that were found to contain undeclared prescription drug ingredients, and a reader deserves that context. FDA describes the category generically: “These products are typically promoted for sexual enhancement, weight loss, pain relief and body building and are often represented as being all natural.” Products, plural: the notifications describe a category, not this jar.
A search of FDA’s Sexual Enhancement and Energy Product Notifications on September 25, 2026 did not return Maxforce. That is a statement about what a database held on a date, and it is the only statement of that kind this site will make. FDA supplies the caveat itself: “FDA is unable to test and identify all products marketed as dietary supplements that have potentially harmful hidden ingredients.” No test result for this product exists in the public record, and no supplement is approved before it is sold.
Which leaves FDA’s own closing instruction, and it is the right end for this passage: “Talk to a health care professional before buying or trying a new product for your health.”
4 instructions in the storage line
What the label itself says
A real warning panel with a typo in it, and a storage line with nothing missing from it.
Last, the two paragraphs the jar prints, reproduced exactly.
The warning panel, verbatim
WARNING: If you are pregnant or nursing, take medications or have a medical condition, consult your doctor before using. Discontinue use and consult your doctor is any adverse reactions occur.
A real warning panel, printed on the wrap, naming pregnancy, nursing, medication and medical conditions. It is the right set of things to name. It also contains a typo in its last sentence — “consult your doctor is any adverse reactions occur”, where the word should be if. Nobody is harmed by a typo. It is worth noticing where it is: in the one paragraph on the package whose job is to be read carefully.
The storage line, verbatim
KEEP OUT OF THE REACH OF CHILDREN. STORE AT ROOM TEMPERATURE 59-86 DEGREES F (15-30 DEGREES C). KEEP BOTTLE TIGHTLY CLOSED. FOR YOUR PROTECTION, DO NOT USE IF THE SEAL UNDER THE CAP IS BROKEN OR MISSING.
Printed in full, in capitals, with the tamper-seal instruction included. Nothing is missing from it. Four instructions in one paragraph: out of reach of children, room temperature between 59 and 86 degrees Fahrenheit, cap closed, and do not use it if the seal under the cap is broken or missing. That last is the only physical check a buyer can run on a sealed jar, and it is printed in full.
Questions
Maxforce FAQ: safety and side effects questions
What are the side effects?
No side-effect list is printed on the jar. NCCIH names side effects for green tea extract supplements: “nausea, constipation, abdominal discomfort, and increased blood pressure.” For five of the nine ingredients there is no federal side-effect information at all.
Is there a warning on the label?
Yes, a real one: “If you are pregnant or nursing, take medications or have a medical condition, consult your doctor before using. Discontinue use and consult your doctor is any adverse reactions occur.” Note the typo in the last sentence — the word should be if.
Is there anything about liver injury?
Two of the nine carry federal liver notes. Ashwagandha: “Although it is rare, there have been a number of cases that link liver injury to ashwagandha supplements.” Green tea extract: “Although uncommon, liver injury has been reported in some people who used green tea products, primarily green tea extracts in tablet or capsule form.” Both amounts here are small.
Should I worry about the caffeine?
5 mg is a rounding error beside FDA’s 400 mg a day figure. FDA’s caveat still applies: “there is wide variation in both how sensitive people are to the effects of caffeine and how fast they eliminate it from the body.”
Is this product on any FDA list of tainted products?
A search of FDA’s Sexual Enhancement and Energy Product Notifications on September 25, 2026 did not return Maxforce. That is a statement about what a database contained on a date and nothing more. FDA itself notes: “FDA is unable to test and identify all products marketed as dietary supplements that have potentially harmful hidden ingredients.” No test result for this product exists in the public record.
References
Sources for this page
- National Center for Complementary and Integrative Health. Green Tea: Usefulness and Safety. www.nccih.nih.gov. Accessed September 25, 2026.
- National Center for Complementary and Integrative Health. Ashwagandha: Usefulness and Safety. www.nccih.nih.gov. Accessed September 25, 2026.
- U.S. Food and Drug Administration. Spilling the Beans: How Much Caffeine is Too Much?. www.fda.gov. Accessed September 25, 2026.
- U.S. Food and Drug Administration. Sexual Enhancement and Energy Product Notifications. www.fda.gov. Accessed September 25, 2026.
- MedlinePlus Medical Encyclopedia. Sweeteners - sugars. medlineplus.gov. Accessed September 25, 2026.
Next
Keep reading
Who should stop before ordering
Six groups, and one whose question belongs in a consulting room.
Read it →All nine ingredients, one at a time
What the federal record carries on each, and where it carries nothing.
Read it →All eleven marks, explained
What a seal can mean, and what only a certificate could.
Read it →Read the safety record before you order Maxforce
30 gummies a jar, one a day, thirty days a jar. A proprietary blend of 82 mg holding nine ingredients, of which one carries a figure of its own. 60 days from purchase to change your mind. Sales line +1 (302) 200-3480.
Price shown at checkout · 60-day window from the date of purchase · ships from inside the US · sales line +1 (302) 200-3480