Bio-Precision at the heart of our formulations: Each capsule is carefully designed to work with the body’s
natural systems, not just within them.

Selenium
BTONIC® Medical Selenium provides 100 µg selenium per capsule as sodium selenite — a stable, well-absorbed form. Selenium is a critical cofactor for endogenous antioxidant enzymes like glutathione peroxidase, protecting cells from oxidative stress and free radical damage.
It also contributes to thyroid hormone regulation, supports normal spermatogenesis, and promotes healthy hair and nails — fundamental for endocrine, reproductive, and metabolic resilience.
Developed in Austria by nutritional experts. Manufactured under strict pharmaceutical standards.
Suitable for daily use by adults, seniors, and those with high oxidative or immune demand.
Description
A precise, single-ingredient formula to reinforce antioxidant defense and immune readiness while supporting thyroid function and reproductive health. Sodium selenite efficiently supplies bioactive selenium for selenoprotein synthesis, including glutathione peroxidase.
Ingredients
Selenium (as sodium selenite)*ᴾᴿᴱᴹᴵᵁᴹ
✓ Integral to glutathione peroxidase and other selenoproteins that defend against oxidative damage
✓ Supports normal thyroid function (incl. T4 → T3 conversion)
✓ Promotes male fertility by maintaining sperm motility and DNA integrity
✓ Contributes to healthy hair and nails
✓ Plays a key role in immune defense and antioxidant balance
How to take
Take 1 capsule daily with a main meal and water.
Can be used continuously or in targeted 1–3 month cycles.
Avoid taking on an empty stomach to reduce the chance of mild gastrointestinal discomfort.
Bio-Precision Optimization
- For optimal bioavailability and enzymatic activation, take your daily capsule in the morning or at lunchtime with a protein-rich meal (e.g., fish, legumes, eggs) to support conversion into active selenoproteins.
- During periods of high oxidative stress (illness, intense training, toxin exposure), pair selenium with vitamin C or E for synergistic antioxidant protection.
Recommended for
- Individuals with low immune resilience or frequent infections
- Those with thyroid imbalances, especially autoimmune hypothyroidism
- Men seeking to improve sperm quality and fertility
- Women with hair loss, brittle nails, or dull skin
- Adults exposed to oxidative stress (pollution, smoking, UV, certain medications, poor diet)
- Seniors or individuals with reduced micronutrient absorption
Nutrition Facts
Active Ingredient | Amount | %NRV* |
---|---|---|
Selenium | 100 µg | 100% |
*NRV = Nutrient Reference Value according to EU Regulation 1169/2011
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Benefits of daily usage
Bio-Precision Support
Benefits of Daily Usage – Stable Nutrient Status
Consistent, daily usage helps maintain optimal micronutrient levels so key enzymes can work reliably. Over weeks, this supports steady energy, focus, immune balance, and visible wellness (e.g., skin, hair, nails).
Bio-Precision Support – Active, Body-Aligned Forms
Btonic uses bio-identical or activated vitamin forms and clean co-factors to target real physiological pathways (energy metabolism, nervous system balance, antioxidant defense) with high usability and minimal waste.
Clinically-Calibrated & Clean – Made to Tolerate Daily
Evidence-informed doses, EU-GMP manufacturing, and minimal additives mean the formulas are effective, consistent, and gentle enough for everyday routines—so you can actually stick with them and see cumulative benefits.
BIO-PRECISION HACK
Take Silver Bones in the evening with dinner in alignment with the body’s natural bone renewal cycle, which peaks at night. The combination of calcium, K2, and D2 works in sync during your most restorative hours.