Magnesium Breakthrough review: $42.75 billed today, and every 30 days, for 1 bottle, subscription only on this door, $42.75-$136 every 30 days.

By what we can check, yes: the label's math adds up (500mg elemental magnesium across seven named forms, 119% DV), the manufacturer, BIOptimizers USA Inc., prints a street address and phone number on the bottle itself, and the order form we rendered on September 3, 2026 charges exactly what it says, to the cent.

What we can't verify: the three different conversion rates the seller itself publishes for this exact offer, and the customer testimonials on its own sales letter, none of which carry independent verification.

500mg (119% of the Daily Value) per 2-capsule serving, per the label's own Supplement Facts panel, alongside 2mg of Vitamin B6 (118% DV), 1mg of manganese (43% DV) and a 10mg Humic/Fulvic Acid Blend with no established Daily Value.

The label names magnesium amino acid chelate, magnesium bisglycinate, Sucrosomial magnesium (as magnesium oxide), magnesium malate, magnesium orotate, magnesium taurate and magnesium citrate, adding up to 500mg elemental.

It prints the words "Proprietary Blend" directly over that list, so the amount of any single form is not published anywhere we found, on the label, the sales letter or the FAQ. Magnesium L-threonate, a form some other supplements use, is not one of the seven.

The door this review's own link reaches (magbreakthrough.com/sleep/cb) sells only subscription tiers: $42.75, $87.00 or $136.00 billed today and again every 30 days for one, three or five bottles. A one-time purchase path exists at the same seller ($47.75/$99.00/$160.00) but isn't reachable from this page.

BiOptimizers' subscription policy names only two ways to cancel: calling (800) 719-2467, Monday to Friday 10 AM to 8 PM EST, or emailing support@bioptimizers.com; we found no self-serve cancel option in the policy we read.

The order form we rendered on September 3, 2026 charges $42.75 today, and every 30 days after, for one bottle, $87.00 for three, and $136.00 for five, all with free shipping except the one-bottle tier's $7.75 charge.

The lander's own card for the one-bottle tier reads "$35 TOTAL," $7.75 less than what the order form actually charges; the shipping fee never gets its own line in the cart summary.

The label says with a meal: "Take 2 capsules daily, preferably with a meal or as directed by a healthcare professional." The sales letter reached by this review's own link says the opposite, that it should be taken on an empty stomach for maximum absorption.

We print both documents; ask a healthcare professional which to follow, especially if you already take magnesium or another supplement.

It's narrower than the badge on the card. BiOptimizers' refund policy requires unopened bottles, and on a multi-bottle order you must return all but one bottle unopened to qualify for a full refund; opened bottles beyond the first get a prorated refund instead, and shipping and handling are never refunded.

Separately, the order form where you enter your card prints a different number: "ClickBank will allow for the return or replacement of any product within 60 days from the date of purchase." Count it as a 60-day, unopened-bottle guarantee, the stricter of the two.

The label's own caution reads: "Use only as directed. Keep out of reach of children. Do not use if safety seal is broken or missing. Consult your healthcare practitioner before use if pregnant, nursing, taking medication, or under medical supervision. Discontinue use if adverse reactions occur."

Magnesium supplements in general are commonly linked to digestive upset at higher doses; the sales letter's own loading protocol, which goes well beyond the label's 2-capsule serving, warns that a higher dose "may disrupt your digestive system because magnesium draws water."

This review links only to the seller's own tracked page, and we did not check Amazon or Walmart listings as part of it.

BiOptimizers' own refund policy notes that its guarantee "only applies to items purchased directly from us or our authorized retailers," an acknowledgment that unauthorized third-party listings of this product exist; we make no price comparison to them.

BiOptimizers' own shipping policy lists an international rate ("International orders $14.95") and a delivery window of up to three weeks, so the company does ship internationally through its own site.

Separately, its commission program's own FAQ states it "only accepts traffic from US" and that non-US orders may be "redirected to a local distributor" where this review's tracked link would not apply; that's a rule about commission tracking, not about who the product ships to. This review is written for the US checkout.

We didn't render a competitor's checkout for this review, so we won't put a number on that comparison here.

What we can say from this label alone: 500mg elemental across seven forms is a larger, more varied dose than most single-form products list; the trade-off is that the split between those seven forms isn't published, and the checkout for this offer is subscription-only where many single-form competitors sell one-time.