Audifort vs Quietum Plus vs ZenCortex: We Read the Labels and the Checkout

The short answer

Every comparison we found online repeats the sales pages; we read the labels, order forms and refund policies instead. The finding that changes everything: Audifort and ZenCortex declare exactly the same formula. Same serving, same 200 mg proprietary blend, the same 22 ingredients in the same order. If the liquid is the same, you are not choosing a formula. You are choosing a refund window, a real checkout total, and the company on the other side of the counter.

• If you want the 22-ingredient drop formula, choose Audifort: a 90-day guarantee against ZenCortex's 60, a refund not reduced by "shipping and handling," and label directions that make one bottle last twice as long.
• If you want a different formula entirely, Quietum Plus is a capsule with vitamins, 26 mg of zinc and a 12-herb blend. But its bottle reads "Clear Mind · Memory & Focus · Mood Support," not hearing, and seven of the herbs are libido-blend staples.
• If you have sudden hearing loss, tinnitus in one ear only, dizziness or ear pain, buy none of them today. See an ENT first.

And for all three: no subscription. We checked the cart data. Each is a single payment.

Two labels, one formula

The ZenCortex label, downloaded September 19, 2026, beside the Audifort panel from our full review:

The 22 names, in shared order: maca, grape seed, guarana, African mango, eleuthero, astragalus, green tea, gymnema, coleus forskohlii, capsicum, grapefruit seed, Panax ginseng, raspberry ketones, L-glutamine, L-tyrosine, L-arginine, beta-alanine, monoammonium glycyrrhizinate (from licorice), GABA, L-ornithine, L-tryptophan and L-carnitine. Only the inactive ingredients differ: Audifort adds glycerin and three preservatives.

The order pages match too. We compared the text of Audifort's order page (audisoothe.com) with ZenCortex's (zencortex24.com): 162 lines are identical, word for word. The kit names ("60 Days, 2 Bottles," "90 Days, 3 Bottles," "180 Days, 6 Bottles"). The tracking script, down to the same programmer's comments. A testimonial signed "- Texas, USA." And the reference list, which on both pages includes A Course in Miracles by Helen Schucman, a 1976 spirituality book, cited as support for a hearing supplement.

What we are not saying. Not that the companies are the same, nor that one copied the other, nor anything about intent. We do not know why. We are only telling you it is so.

The six ingredients both brands feature on their sales pages. Both labels list the same 22.

What the shared formula does not tell you. Neither label breaks down the 200 mg. Across 22 ingredients, that averages about 9 mg each, far below any studied dose of grape seed extract or GABA. This lands on Audifort exactly as hard as on ZenCortex.

The directions are the one real difference. Same 60 servings, but ZenCortex's label says twice a day, so its bottle lasts 30 days and Audifort's 60. (Audifort's store calls each bottle a "30-day supply," contradicting its own label.)

Where Quietum Plus stands. A different product in a different form: 60 capsules, not a dropper. Its front label, read from the brand's own product image on September 19, 2026, says "Quietum Plus · Dietary Supplement · Clear Mind · Memory & Focus · Mood Support · 60 Capsules." Not one word about ears, hearing or tinnitus, while the sales page is entirely about tinnitus.

For its Supplement Facts we had to rely on a third-party recreation of the panel, not a photograph, so treat these as best available evidence, not proof: 2 capsules per serving, six vitamins (B12 at 2,250% DV), zinc oxide 26 mg (236% DV), L-arginine and L-tyrosine at 100 mg each, BioPerine 500 mcg, and an 802 mg proprietary blend of 12 herbs. The sales page claims "18 special high-quality plant extracts."

Price, guarantee and checkout: what you are actually charged

All three charge exactly the same money: same kits, same prices, same crossed-out $179 "regular price" that nobody pays, no single bottle, shipping only on the two-bottle kit. Order pages as read on September 19, 2026:

Only Quietum Plus publishes its shipping charge. Audifort and ZenCortex print "+ SHIPPING" and leave the figure to the ClickBank cart, which prices it after you enter an address.

ZenCortex's storefront and its checkout disagree. The main site, zencortex.com, advertises "1 Bottle: $69 per bottle + free shipping" and "3 Bottles: $59 per bottle," against a "Regular Price: $99." Click "Order" and you are redirected to zencortex24.com, where there is no single bottle, the three-bottle kit costs $69 a bottle, and the crossed-out price is $179. The storefront advertises one price, the checkout charges another, and the brand anchors on two different "regular" prices.

The math the sticker hides. Three bottles cost $207 from either Audifort or ZenCortex. ZenCortex's label says one dropper twice a day, so three bottles last 90 days: about $2.30 a day. Audifort's says once a day, so 180 days: about $1.15 a day. Identical price, double the cost per day.

On the guarantees, a correction to our own headline number. Audifort's 90 days beat Quietum Plus's 60. But Quietum Plus counts from delivery and Audifort from the day you order. With five to ten days of shipping, the real gap is closer to 20 days than 30.

On Audifort, three problems we documented ourselves. One paragraph of its return policy says "sixty (60) days" while the rest says 90. Another line says "sale items cannot be refunded," in a store where every kit is on sale. And the clock starts at purchase.

On Quietum Plus, the free shipping that isn't. Its shipping policy says "United States: FREE" and its FAQ says you pay "Nothing at all!" The two-bottle checkout charges $9.99. Its refund page asks you to use the product "for at least 3 months" inside a 60-day window; follow that advice and the window has closed. And the six-bottle kit ships with a free jar of "Fast Lean Pro," labeled "Promotes Healthy Weight Loss · Supports Fasting And Metabolism." That is the gift included with a tinnitus order.

On ZenCortex, the fine print the checkout hides. The sales page promises a refund "minus shipping and handling fees" and requires the product back. The ClickBank checkout shows only the platform's generic 60-day text. The storefront promises a refund "without any hassle," no return required.

Does any of this work, and for whom?

The AAO-HNSF Clinical Practice Guideline on tinnitus (Tunkel et al., 2014; see Sources), the reference document for US ear specialists, recommends against ginkgo biloba, melatonin, zinc or other dietary supplements for persistent, bothersome tinnitus. Not because they are dangerous, but because trials did not show benefit. None of these three products has a clinical trial of the finished formula; the studies on their sales pages concern single ingredients or mechanisms, often in animals.

So where is the honest bridge between "the guideline says no" and "people keep buying"? Deficiency. A 1993 study of 113 noise-exposed military personnel (Shemesh et al., see Sources) found vitamin B12 deficiency in 47% of those with chronic tinnitus and noise-induced hearing loss, against 27% with hearing loss alone and 19% with normal hearing. That is one study, in young soldiers, not the general population. The zinc evidence is inconsistent, and whatever benefit appears is concentrated in people with a documented deficiency. The reading that survives: if a blood test shows you are low, correcting it with your doctor is real medicine. One nutrient at a known dose for a measured gap, not a 200 mg blend of 22 unnamed amounts.

Measured against that standard:

• Audifort and ZenCortex contain no zinc or B12. Their case rests on circulation botanicals (grape seed, green tea, ginseng, L-arginine) and calming amino acids (GABA, L-tryptophan). Plausible roles. No finished-product evidence.
• Quietum Plus does contain zinc and B12, but as 26 mg of zinc oxide, the form with the poorest absorption, at 236% of the daily value, every day. Its herbal blend (epimedium, tribulus, catuaba, damiana, maca, muira puama, mucuna) belongs in a men's vitality product.

The realistic expectation is modest: some people feel calmer or sleep better, which can make tinnitus less intrusive. A fair thing to try inside a refund window. Not a treatment.

Drug interactions for readers over 50

Audifort and ZenCortex share a label, so they share the warnings. This is not a point for either one.

Licorice, in both. Monoammonium glycyrrhizinate is a licorice derivative. Glycyrrhizin can raise blood pressure and lower potassium with regular use. If you take blood-pressure medication or diuretics, ask about it specifically. Neither label states the amount.

Caffeine sources and ginseng, in both. Guarana and green tea contain caffeine. Panax ginseng may reduce warfarin's effect; green tea extract interacts with warfarin and some statins.

Gymnema, coleus and chromium, in both. All three can lower blood sugar. On metformin, insulin or a sulfonylurea, that can push you too low.

L-tryptophan, in both. A serotonin precursor. Do not combine with SSRIs, tramadol or triptans without medical sign-off.

Quietum Plus has a stranger problem. It contains BioPerine (piperine), which inhibits the liver enzyme CYP3A4, and dong quai, which with prolonged use induces that same enzyme, the one that processes simvastatin and atorvastatin. One bottle carries a brake and an accelerator for the same pathway, so the net effect on a statin, a blood thinner or a heart-rhythm drug is unpredictable. Dong quai also adds to warfarin's effect. Tribulus and ashwagandha can lower blood pressure. Mucuna contains natural levodopa, relevant on Parkinson's medication.

None of the three sales pages carries a drug-interaction warning. Take this section to your pharmacist.

Our verdict

ZenCortex declares the same formula as Audifort and charges the same $207 for three bottles. But its label says to use twice as much per day, which makes it double the cost per day; its guarantee is 60 days, not 90; its refund is reduced by shipping and handling; and its storefront advertises prices its checkout does not charge. Its ingredient document states the product is "also called Cortexi," and its sales page calls the formula "new and improved."

Quietum Plus is a different product, and that is its only advantage. Its bottle does not mention hearing. Its herb list reads like a libido formula. Its sales page says 18 extracts and its panel says 12. Its shipping policy says free and its cart says $9.99. And its return address, 19655 E 35th Dr #100 in Aurora, Colorado, is the address printed on the ZenCortex label. Again: we do not know why.

Audifort is not clean either. Its blend is undisclosed. Its policy contradicts itself in three places. It contains licorice and caffeine sources. But of the three, it has the longest refund window, a refund of the full product price, a published return address and phone line, and a bottle that lasts 60 days by its label. Our full review scored it 4.2 out of 5 ★★★★★★★★★★; nothing here moves it.

If you try one, here is the plan. Buy the three-bottle kit at $207 with free shipping. Start the day it arrives. Judge honestly at week ten. If nothing has changed, request your RMA by day 75.

Frequently asked questions

If the American Academy of Otolaryngology says not to use supplements, why do so many people buy them?

Because tinnitus is common and stubborn, and medicine offers management, not a cure, so a bottle with a refund promise sounds like hope. The guideline does not say these ingredients hurt you; it says trials did not show they help. Never buy in place of an exam.

Is the Audifort guarantee 60 days or 90?

Ninety, per the sales page and the return-policy page, re-checked September 19, 2026. But one paragraph of that policy says "sixty (60) days," which is why both numbers circulate. Request your RMA by day 75 and you are safe either way.

Can I take these with a blood thinner or blood-pressure medication?

Not without asking. Audifort and ZenCortex contain a licorice derivative, ginseng and green tea. Quietum Plus contains dong quai and tribulus. None publishes the amounts, so your pharmacist cannot judge the risk from the label.

Will I be billed every month without noticing?

No. We read the cart data for every kit. All three are single payments with no recurring charge and no autoship. The only extra is ZenCortex's optional $6.95 shipping insurance box, unchecked by default.

Do I have to send back full bottles to get a refund?

You do have to send them back. Quietum Plus and ZenCortex say they accept empty bottles; Quietum Plus wants every bottle plus the packing slip. Audifort's sales page says "even for empty bottles," but its return policy asks for product "in good physical condition," a contradiction we documented in our review: return everything, empties included, and keep the RMA e-mail. Expect to pay return shipping in all three cases.

How long until I would know, and when should I stop?

Give it eight to ten weeks with honest notes: how loud, how often, how well you sleep. If week ten looks like week one, stop and request the refund. Ignore advice to "use it for three months" inside a 60-day window.

Why does the same product score 9.4 on one site and not appear on another?

Because most review sites are paid by the sale, and many copy the sales page. The stars on the official pages are images, not widgets: Quietum Plus shows "11,388 reviews" as a graphic with no source; ZenCortex shows "4.98/5 from 2000+ reviews" the same way. No independent platform backs either number. Our score is editorial.

Sources

• Tunkel DE et al. Clinical Practice Guideline: Tinnitus. Otolaryngology–Head and Neck Surgery, 2014;151(2S):S1–S40. AAO-HNSF fact sheet
• Shemesh Z et al. Vitamin B12 deficiency in patients with chronic tinnitus and noise-induced hearing loss. American Journal of Otolaryngology, 1993. PubMed 8484483