

Pros
- Two Genuine Placebo-Controlled Trials: The elasticity and hair claims rest on randomised, double-blind, placebo-controlled studies in Archives of Dermatological Research — Barel 2005 across 50 women over 20 weeks, and Wickett 2007 across 48 women over nine months.
- A Named Manufacturer With a Registration Number: Bio Minerals NV of Destelbergen, Belgium, trading since 1994 under Belgian commercial register number 0451.906.964, with Health Canada natural product numbers issued for both the capsules and the drops.
- A Label You Can Actually Read: One capsule delivers 100 mg of choline as ch-OSA and 5 mg of silicon, and the Advanced Hair Growth Formula publishes every active per four-capsule serving — 200 mg choline, 10 mg silicon, 40 mcg selenium, 500 mcg biotin, 30 mg Ceramosides and 100 mg AnaGain.
Cons
- The company describes the researchers behind those trials as independent, but its own R&D director is a co-author on both — the studies are real and peer-reviewed, and it is the word independent that should be discounted rather than the science.
- Because the products are consumable, all sales are final with no refunds; damaged or incorrect orders are handled within seven days at the company's discretion, so start with a single bottle rather than a subscription.
The Verdict
What sets BioSil apart is the premise: it does not sell you collagen, it tries to make you produce your own: The active is choline-stabilised orthosilicic acid, which the company brands ch-OSA and has manufactured since 1994 as Bio Minerals NV in Destelbergen, Belgium, under Belgian commercial register number 0451.906.964. One capsule delivers 100 mg of choline as ch-OSA and 5 mg of silicon; the Advanced Hair Growth Formula runs 200 mg choline and 10 mg silicon across four capsules alongside 40 mcg selenium, 500 mcg biotin, 30 mg Ceramosides wheat lipid extract, 100 mg AnaGain pea sprout extract and a 100 mg taurine and cystine blend. Pricing runs the Collagen Generator capsules at $38.08, the drops at $21.81 and the Advanced Hair Growth Formula at $79.99 for 30 sachets. The evidence is better than most of the category and worth reading precisely. Two randomised, double-blind, placebo-controlled trials sit behind the headline numbers: Barel and colleagues in Archives of Dermatological Research in 2005, 50 women with photodamaged skin over 20 weeks at 10 mg silicon a day, which produced the 89% elasticity and 30% roughness figures; and Wickett and colleagues in the same journal in 2007, 48 women with fine hair over nine months at the same dose. Both are real, peer-reviewed and properly designed. The qualification is that Bio Minerals' own R&D director is a co-author on both, so the company's description of them as independent researchers does not hold, and the loudest claim on the site — up to 12,000 extra hairs in 60 days — carries no citation at all. On service terms, go in knowing there is no way back. Because the products are consumable, all sales are final and refunds are not offered; damaged, defective or incorrect orders must be reported within seven days of delivery and are resolved with a replacement, refund or store credit at the company's discretion, with the right to investigate and decline reserved. Shipping is free on subscriptions and on orders over $50 in the continental United States, $4.99 below that, arriving in three to four business days. BioSil holds 4.4 out of 5 across 650 Trustpilot reviews with 11% at one star, and the recurring theme in that band is subscription renewal rather than the product itself — so buy a single bottle first and set your own reminder before any auto-ship date.
Make Collagen Rather Than Swallow It
BioSil is made by Bio Minerals NV, a Belgian company founded in 1994 and based at Zenderstraat 12, Destelbergen, registered under Belgian commercial register number 0451.906.964. Its active ingredient is choline-stabilised orthosilicic acid, marketed as ch-OSA, and the company states it operates the only facility making it. Rather than supplying collagen to be digested, the premise is that silicon supports the body's own collagen, elastin and keratin production. The range covers the Collagen Generator in original capsules, liquid capsules and drops, an Advanced Hair Growth Formula, Advanced Hair + Nail Care, a Daily Beauty Protein in vanilla and chocolate, and formulations for healthy ageing, bone support and GLP-1 weight-loss recovery. A separate practitioner portal serves dental, dermatological and aesthetic clinics.
Current pricing: Collagen Generator liquid capsules at $38.08, original capsules at $38.08 and drops at $21.81, with the Advanced Hair Growth Formula at $79.99 for 30 sachets of four capsules. Published supplement facts are unusually complete for the category. One Collagen Generator capsule delivers 100 mg of choline as ch-OSA, 18% of the daily value, and 5 mg of silicon, for which no daily value is established, with silicon dioxide, purified water and an HPMC shell as the only other ingredients. A four-capsule serving of the Advanced Hair Growth Formula delivers 200 mg choline, 10 mg silicon, 40 mcg selenium as sodium selenate, 500 mcg biotin, 30 mg Ceramosides wheat lipid extract, 100 mg AnaGain pea sprout extract and a 100 mg taurine and cystine blend. Products are described as vegan, GMO-free, dairy-free and soy-free, and carry Health Canada natural product numbers 80023605 for the capsules and 800005878 for the liquid drops.
The clinical claims are worth examining closely, because they are better supported than most and still need qualifying. Two studies are cited in the site footer. Barel and colleagues, published in Archives of Dermatological Research in 2005, was a randomised, double-blind, placebo-controlled trial in 50 women with photodamaged facial skin, 25 on ch-OSA and 25 on placebo, over 20 weeks at 10 mg of silicon a day; it is the source of the 89% skin elasticity and 30% roughness figures. Wickett and colleagues, in the same journal in 2007, was also randomised, double-blind and placebo-controlled, in 48 healthy women with fine hair of mean age 43, over nine months at the same dose. Both are genuine trials with appropriate designs. Two qualifications belong alongside them. The company's about page calls these independent researchers, but Mario Calomme, listed on BioSil's own science page as its R&D director, is a co-author on both, as is D. Vanden Berghe. And the most eye-catching claim on the site, up to 12,000 extra hairs in 60 days, together with the 29% less shedding and 41% more resilient hair figures for the Advanced Hair Growth Formula, carries no citation at all.
Shipping is free on all subscriptions and on orders over $50 in the continental United States, with a $4.99 charge below that and delivery in three to four business days. The refund position is strict: because the products are consumable, all sales are final and no refunds are offered. Damaged, defective or incorrect items must be reported within seven days of delivery, and replacements, refunds or store credit are issued at the company's discretion, with the right to investigate and decline claims reserved. There is no satisfaction guarantee. Subscriptions cover one product type each and are managed through the account area. On independent signal 75% five-star and 11% one-star, with 146 reviews in the last twelve months on a claimed profile where the company replies to every negative review. The recurring complaints concern being locked into subscription renewals, changes to product format between orders, difficulty reaching support at weekends, and results falling short of the advertised figures. There is no Better Business Bureau profile, which is expected for a Belgian manufacturer rather than a signal either way.
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About this review
How this was written, who paid for what, and how the verdict stays independent.
Is this BioSil review sponsored?
No. BioSil did not pay for this write-up, see it before publication, or have any say in the verdict. If we earn anything it is a commission after you buy, and it comes out of the merchant’s margin rather than your price.
How was the BioSil assessed?
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