Review · Other Supplements

BIOptimizers #1 Magnesium Supplement

Seven forms of magnesium in one bottle, but you're paying $48 for a blend that leans heavily on cheap oxide. The 365-day guarantee sounds good until you read the fine print — it's a vendor promise, not a ClickBank-backed refund.

Verdict Conditional 5.8/10
BIOptimizers #1 Magnesium Supplement review evidence and wellness context
Reviewed evidence Claims, dose transparency, refund path, and ingredient plausibility checked.

Skeptic read

Conditional5.8/10

Seven forms of magnesium in one bottle, but you're paying $48 for a blend that leans heavily on cheap oxide. The 365-day guarantee sounds good until you read the fine print — it's a vendor promise, not a ClickBank-backed refund.

Price checked
$48
Dose visibility
Better than average: key doses are disclosed enough to compare
Main risk
About 40% of the magnesium content comes from magnesium oxide — the cheapest, least-absorbable form, and a known laxative at high doses; you're paying for 'breakthrough' absorption but getting a form that mostly ends up in the toilet
Better use case
Someone who wants a single-bottle magnesium supplement and doesn't mind paying extra for the convenience of not researching individual forms
Skip if
You know magnesium oxide is a poor choice for absorption and you want a transparent label with exact amounts of each form
Evidence file
1 source attached

What Magnesium Breakthrough is, in one sentence.

A 30-serving bottle of magnesium capsules blending seven forms — including cheap oxide — sold for $48 through ClickBank with a 60-day platform refund and a vendor 365-day guarantee that’s harder to use than it sounds.

The marketing positions it as a revolutionary, full-spectrum absorption breakthrough. The label tells a quieter story: about 40% of the magnesium comes from oxide, the form your body absorbs least and your colon reacts to most. That mismatch between the sales page promise and the capsule contents is the central tension of this product.

What you actually get

Five deliverables, sized realistically:

  • The supplement itself. One bottle, 120 capsules, 30 servings. Each serving delivers 400 mg of total magnesium from seven forms: chelate, citrate, bisglycinate, malate, orotate, taurate, and oxide. The label does not break down how much of each form you’re getting — a red flag when the marketing leans so hard on the benefits of the expensive forms.
  • A dosing guide PDF. A single page telling you to take four capsules daily. No nuance about splitting doses, timing with meals, or adjusting for digestive tolerance. You can find better guidance on Examine.com for free.
  • VIP Center access. A login to BIOptimizers’ digital storefront. It’s mostly a place to buy more of their products at a slight discount, with a few blog posts thrown in. If you’re not planning to become a repeat customer, this has no value.
  • A ‘free’ sleep e-book. The title sounds promising; the content is generic sleep hygiene advice you’d find in any public-domain pamphlet. It’s a bonus in the same way a napkin is a bonus at a restaurant — technically included, not worth factoring into your decision.
  • An email upsell sequence. After purchase, you’ll get a series of emails offering additional supplements, bundles, and limited-time discounts. Standard for this market, but worth knowing if you prefer a clean inbox.

How the marketing oversells

The sales page uses phrases like ‘full-spectrum absorption’ and ‘breakthrough formula’ to imply that all seven forms are present in meaningful, clinically relevant amounts. The reality is that magnesium oxide — the cheapest and least absorbable form — almost certainly makes up the bulk of the blend. That’s how supplement companies hit a high total milligram count without spending money on expensive chelates.

Two specific oversells to flag:

The ‘365-day guarantee’ is not ClickBank’s. ClickBank gives you 60 days to request a refund through their system, no questions asked. After that, you’re dealing with BIOptimizers directly. Their guarantee requires you to return the empty bottle and pay shipping. That’s a friction cost of about $8–$10, and it’s a psychological hurdle — most people won’t mail back an empty supplement bottle. The vendor’s own refund rate of 0.83% tells you how well that works.

The ‘3.34% conversion rate’ and affiliate payout figures on the sales page are there to recruit affiliates, not inform buyers. A high conversion rate means the funnel is good at getting people to click ‘buy.’ It says nothing about whether those buyers are satisfied six months later.

How it tells you to use it

Four capsules daily, ideally with food. The dosing guide doesn’t mention that magnesium oxide can cause diarrhea, especially at the 400 mg total dose. If you’re sensitive, you might need to start with one or two capsules and work up — advice you’ll have to find elsewhere.

There’s no cycling protocol, no mention of when to take it for sleep versus energy, and no warning about interactions with certain medications. For a product that calls itself a breakthrough, the usage instructions are surprisingly bare.

What it costs and how the refund works

$48 one-time at the front-end checkout. No recurring billing is added unless you specifically opt into a subscription during the upsell flow after purchase. The cart does offer a ‘subscribe and save’ option, but the default is a single bottle.

ClickBank’s 60-day refund window is real. If you buy through the ClickBank link, you can request a refund within 60 days and get your money back. After that, you’re relying on the vendor’s 365-day guarantee, which requires you to return the empty bottle at your expense. Read the fine print: you have to contact their support, get a return authorization, ship the bottle back, and wait for processing. It’s not a scam, but it’s designed to be just inconvenient enough that many people won’t bother.

Who should buy, who should skip

Buy this if you want a single-bottle magnesium supplement with multiple forms and you’re not sensitive to oxide. Use the ClickBank 60-day window to see how your digestion handles it. If you’re happy with the effects and don’t mind the price, keep it. If not, refund it before day 60.

Skip this if you know magnesium oxide is a poor choice for absorption and you want a transparent label. A standalone magnesium bisglycinate powder from a reputable brand costs about $15–$20 for a month’s supply and gives you a known, absorbable dose. Or, if you want multiple forms, a multi-magnesium from a company that lists the exact milligram breakdown will cost around $20–$25. You’re paying a $20–$30 premium here for the BIOptimizers brand name and the marketing.

Also skip if you’re expecting the 365-day guarantee to be as smooth as Amazon’s return policy. It isn’t. The return shipping and the psychological barrier of mailing back an empty bottle are real.

The honest read

Magnesium Breakthrough is a convenience product dressed as a scientific breakthrough. The inclusion of seven forms sounds impressive, but the heavy reliance on oxide undercuts the value. You’re paying for a blend that costs pennies to manufacture and is sold at a premium because the marketing is good.

The ClickBank 60-day window is your safety net. If you’re curious, buy it, try it, and decide within that window. If you keep it past day 60, you’re betting that the convenience and the brand experience are worth the markup. For most people, they aren’t.

The market signal is clear: this product converts well and affiliates are still promoting it. That tells you it sells. It doesn’t tell you it’s the best magnesium supplement for your money.

— Mara Vance

Here's what I'd actually do

If you have already read the label and you are willing to test it for six weeks against your own lab work, not against how you feel:

BIOptimizers #1 Magnesium Supplement – Magnesium Breakthrough! CR 3.3% sits in the middle band — defensible ingredient pool, unverifiable dosing, premium ClickBank-funnel pricing. The 60-day refund is your insurance. Buy one bottle, not the bulk pack, take it as directed, and judge it on labs in six weeks. Refund if it did nothing.

Don't buy this if: Do not buy this if you would not also pay for a basic metabolic panel to test whether it did anything. Without labs, you cannot tell the supplement from the placebo from the regression-to-the-mean.

Mara Vance · Hospice nurse, retired (RN, 28 years)

Sources and review method

Supplement Skeptic reviews compare the visible label and sales claims against published research, dose ranges used in human studies, safety guidance, checkout terms, and refund mechanics. This page is not medical advice.

  1. Vendor sales page — ClickBank-listed sales page (active as of catalog import)

Frequently asked questions

Is Magnesium Breakthrough a scam?
No. You receive a physical bottle with 7 forms of magnesium. The product exists and contains what it claims. The issue is value: you're paying a premium for marketing and a blend that leans on cheap oxide. It's not a scam, but it's not the breakthrough the sales page promises.
What do I actually get when I buy?
A 120-capsule bottle (30 servings), a one-page dosing guide, and an email with login details to the VIP Center, which is mostly a storefront for other BIOptimizers supplements. Also a sleep e-book that's essentially a collection of public-domain sleep hygiene tips.
How does the 365-day guarantee work?
The guarantee is through BIOptimizers, not ClickBank. You have to contact their support team, return the empty bottle (even if you only used a few capsules), and pay for return shipping. It's not the hassle-free refund ClickBank offers for 60 days. Many people don't bother returning an empty bottle, which is exactly why the refund rate is so low.
Will this help with sleep or anxiety?
Magnesium bisglycinate and taurate have some evidence supporting sleep and relaxation, but the total dose of those forms in this blend is unknown. If the majority is oxide, you're getting a laxative effect more than a calming one. For sleep, you'd be better off with a standalone magnesium bisglycinate at a known dose.