
Low energy
You run out before it's time.
Stress, inflammation and the passage of time steal your energy, your sleep and make your body take longer to recover.
We combine 5 magnesium salts of the highest purity with 98% bioavailability and Vitamin C for an effect that lasts all day. Morning, afternoon and night.
Innovation everywhere.
Coeus' ultimate magnesium formula, explained in five keys.
Complete functional coverage.
5 salts with different functions cover sleep, energy, recovery, digestion and the immune system.
At 2, 6 and 12 hours.
Fast and slow absorption forms maintain stable functional magnesium levels for longer.
For complete absorption.
Designed for efficient absorption. Organic and chelated magnesiums with greater physiological utilization.
Strengthening the immune system.
Vitamin C contributes to the normal functioning of the immune system and protection against oxidative stress.
For healthy longevity.
Developed under Coeus' most advanced criteria so you feel it today, and notice it tomorrow.
No small print: this is what you can expect from Retromag®.
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.
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.
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.
+16 years of study in the theory of aging for a fuller life. This is how the definitive formula was born.
Daily support for intense routines
Clarity on demanding days
Calmer and smoother nights
Energy and strength in your day
Daily support at every stage
Daily body care
Serenity for your daily life
Stability on intense days
Choose what’s best for your health.
Those who know us already trust COEUS to take care of what matters most: their health and their time. Because feeling like yourself again is already living more and better.








Frequently Asked Questions
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.

Time is yours. Take it.