Capsules · 60 capsules
Serving Size: 1 Capsule
Amount Per Serving
Choline ... 100 mg
(as Choline-Stabilized Orthosilicic Acid) (ch-OSA®)
Selenium ... 20 mcg
(as sodium selenate)
Silicon ... 5 mg
(as Choline-Stabilized Orthosilicic Acid) (ch-OSA®)
Other Ingredients: Microcrystalline cellulose, hypromellose, purified water, spirulina and apple concentrate.
This product does not contain soy, dairy, egg, corn, wheat, gluten, fish/shellfish, nuts/tree nuts.
Consult your healthcare professional prior to use if you have, or suspect a medical condition or are taking prescription drugs.
Keep out of the reach of children.
Take 1 capsule, 2 times daily.
Open original label
Source: Fullscript supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
BioSil® combines ch-OSA® (choline-stabilized orthosilicic acid) with selenium to support the body's own collagen-generating pathways, plus antioxidant defenses that contribute to skin elasticity, hair resilience, and joint tissue maintenance. ch-OSA® is the clinically studied form of bioavailable silicon designed to activate collagen-producing cells rather than simply supplying collagen directly.
Why It's Worth Considering: The ch-OSA® complex uses choline as a carrier to significantly enhance orthosilicic acid absorption compared to standard silica sources, and the addition of selenium supports cellular protection against oxidative stress.
Take 1 capsule, 2 times daily.
For maintenance: 100-200mcg daily (selenomethionine form preferred). For thyroid support: 200mcg. The RDA is 55mcg but most functional medicine practitioners recommend 100-200mcg. Do NOT exceed 400mcg/day, selenium has a narrow therapeutic window and excess causes selenosis (hair loss, nail brittleness, GI issues).
Yes, selenium is critical for thyroid function. It's required for the enzyme that converts inactive T4 to active T3, AND it protects thyroid cells from oxidative damage. In Hashimoto's, 200mcg selenium daily reduces TPO antibodies by 20-40% in clinical trials. It's one of the most evidence-based supplements for thyroid health.
One Brazil nut contains 70-90mcg selenium, so 2 nuts/day provides a therapeutic dose. However, selenium content varies dramatically by soil (some nuts have 10mcg, others have 300mcg). If you rely on Brazil nuts, be cautious about overconsumption, 4-5 large nuts could exceed 400mcg. A supplement provides a consistent, known dose.
Ask Gabriel for personalized stacking recommendations.
No significant interactions identified. Always consult your healthcare provider.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
