Buy Retromag®

Retromag® is a five-salt magnesium supplement —bisglycinate, malate, acetyl taurinate, L-ascorbate, and carbonate— formulated to act simultaneously on the nervous system, energy metabolism, muscle function, cardiovascular health, and digestive balance. It is not a single-salt magnesium: it is a complete formula in a single daily dose, with registered chelated MAGCHEL® and 102.6 mg of integrated vitamin C.

It is designed for those who experience muscle tension and sustained stress, fatigue without an obvious physical cause, or poor-quality sleep. These three symptoms share a common physiological denominator: a suboptimal level of magnesium, a mineral involved in more than 300 enzymatic reactions. Retromag® addresses all three fronts simultaneously.

Most magnesiums on the market use one or two salts and compete on price. Retromag® combines five forms with distinct metabolic roles, incorporates MAGCHEL® —a chelated bisglycinate with a registered name and the best digestive tolerance profile in its category— and adds integrated vitamin C, not as a separate ingredient. It provides 279.6 mg of elemental magnesium per dose (75% NRV) and eight EFSA-authorised claims in a single product. There is nothing equivalent at this level of formula in the Spanish pharmacy at this price.

Because the different magnesium salts are not equivalent: they differ in solubility, absorption, digestive tolerance, and metabolic profile. Chelated bisglycinate has better digestive tolerance than oxide. Malate has a rationale in energy metabolism through the Krebs cycle. Acetyl taurinate brings the nervous system and stress component through taurine. L-ascorbate adds vitamin C without additional ingredients. No single form covers those four angles. Retromag® works all of them simultaneously.

MAGCHEL® is the registered name of the chelated magnesium bisglycinate that forms the core of the formula. In this format, magnesium is bound to two glycine molecules, which significantly improves digestive tolerance compared to inorganic forms such as oxide or carbonate. For people with compromised absorption or a history of discontinuation due to digestive effects with other magnesiums, it is the strongest adherence argument in the category.

Because magnesium L-ascorbate serves a dual function: it provides elemental magnesium and 102.6 mg of vitamin C (128% NRV) in an integrated way. This adds a real antioxidant and immune profile to the formula, with EFSA-authorised claims for cellular protection against oxidative damage and normal immune system function. Vitamin C in Retromag® is not a cosmetic addition: it is a structural part of the formula.

Because the evidence that B6 improves intestinal absorption of magnesium in healthy people is limited and heterogeneous. Combined magnesium + B6 studies show benefit in subjective stress perception, not in the bioavailability of the mineral. Furthermore, the EFSA updated the tolerable upper limit for B6 in 2023 to 12 mg/day due to the risk of peripheral neuropathy with chronic use at high doses. The absence of B6 in Retromag® is not a shortcoming: it is a decision of safety and formulation honesty.

Citrate is a well-absorbed form with solid studies, but in sensitive individuals it has a laxative effect, which reduces long-term adherence. Retromag® prioritises digestive tolerance using MAGCHEL® as a chelated base, adding a more complete functional profile. It is not that citrate is bad: it is that Retromag® is a different proposition for a different profile.

It depends on the goal. Threonate has emerging evidence in the cognitive axis —memory and brain function— but provides little elemental magnesium per dose. If the goal is stress, fatigue, or muscle tension, Retromag® is more complete: more total elemental magnesium, five forms of action, integrated vitamin C, and eight supported EFSA claims. If the goal is exclusively the cognitive sphere, threonate has its place. For general well-being, Retromag® is the broadest formula available in this category.

The response is progressive. Many people perceive changes during the first week: lighter end-of-day feelings, less muscle tension, and a sense of greater calm. Between the second and fourth week, overall stability consolidates, with greater clarity and less sustained fatigue. The speed of response depends on the starting level: with a significant magnesium deficit, the effect is faster and more noticeable. What is consistent is that the experience settles and improves with continuous use.

The forms with the greatest risk of laxative effect are oxide and, in sensitive individuals, citrate. Retromag® uses MAGCHEL® chelated bisglycinate as a base, which is the form with the best digestive tolerance profile in the category. The ideal profile for Retromag® includes precisely those who already tried another magnesium and discontinued it due to digestive discomfort.

Yes. Retromag® is fully compatible with other nutritional supplements. It acts in a complementary way and does not interfere with other ingredients. Within the COEUS catalogue, it is frequently combined with NADTIME® for a complete energy and longevity protocol, with RESCANSO® when nighttime rest is the priority, or with NOESTRÉS® for high nervous-load profiles.

Coeus was born from years of work in areas linked to the science of reverse ageing and biological age reversal. The formulation of Retromag® is inspired by Ageing Theory, which studies the factors that influence how cells age and how nutrition and lifestyle can support healthy ageing. Magnesium, involved in more than 300 enzymatic reactions, is the foundational mineral in any serious preventive wellness protocol. Retromag® is the entry point to the COEUS ecosystem, designed to act in the short, medium, and long term.

Because it is not the same product. A basic single-salt magnesium competes on price because it has no differential argument. Retromag® offers five forms with distinct metabolic roles, a registered ingredient (MAGCHEL®), integrated vitamin C, and eight EFSA claims in a single product. The retail price is €34.90 per bottle (30 days). With a monthly subscription you get a permanent 15% discount: €29.67/month, which works out to €0.99 per day. Compared to threonate magnesiums that exceed €35–50 with less elemental magnesium and no vitamin C, that's a very competitive price. 70% of our customers reorder. What are you waiting for?

Pack Essentials combines Retromag®, Rescanso® and Renergy® to cover the three most common pillars of daily wellbeing: mineral base, energy and sleep. It's the recommended starting point for anyone who wants to supplement in an organised, overlap-free way.

The protocol is straightforward: Renergy® in the morning with breakfast for the day's energy and focus; Retromag® and Rescanso® at night, 30 minutes before sleep, to support muscle relaxation and sleep quality. All three products are safe for continuous use and complement each other without interference.

2 capsules a day, preferably after breakfast or lunch to improve absorption and digestive tolerance. You can take them together or separated according to your routine. If you specifically want to reinforce rest, take the 2 capsules 30 minutes before bed. Every day, because consistency is what turns supplementation into results. Vegan, gluten-free, lactose-free and with no added sugars.