Customize Your Shopping Experience!

Please select the destination country, language, and currency you prefer.

Available Shipping Methods
Available Payment Methods
Added to Cart
Combo Discount:
View/Edit Cart Checkout
Cart Total:
Customers Also Bought:

Natural Factors, BioSil, ch-OSA Advanced Collagen Generator, 1 fl oz (30 ml)

By Natural Factors

Our Price:
You Save:
$6.40 (20%)
  • Volume Discount
  • Buy 4+
    Save 5%
Earn 10% Loyalty Credit ?

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

In Stock
  • Product Code: NFS-39184
  • UPC Code: 5425010391842
  • Package Quantity: 1 fl oz (30 ml)
  • Dimensions: 5.7 x 2.3 x 1.4 in, 0.15 lbs (0.07 kg)
Bundle Offer
Save $2.00 when you purchase these items today for only $29.54


Combo Discount:



- $2.00


Product Overview

  • Beauty · Bones · Joints
  • Reduces Fine Lines and Wrinkles
  • Thickens and Strengthens Hair
  • Strengthens Nails
  • Promotes Strong and Flexible Bones
  • Promotes Healthy Joints
  • Original ch-OSA Formula
  • Clinically Tested
  • Dietary Supplement
  • Vegetarian

The Breakthrough in Collagen!

Collagen is essential for beautiful skin, hair and nails as well as healthy bones and joints. But starting at age 21, collagen diminishes 1% per year. By age 30, the signs become visible. For years, scientists searched for a method to give the human body the ability to regenerate its own collagen. But it took BioSil's landmark discovery of ch-OSA to make it a reality. Its capacity to generate collagen with your own DNA fingerprint makes ch-OSA the genuine breakthrough in collagen.

Clinical Facts
Choline-Stabilized Orthosilicic Acid (ch-OSA)
  Clinically Proven Dosage
Clinically Proven for Skin 5 drops, 2 times daily
Clinically Proven for Hair 5 drops, 2 times daily
Clinically Proven for Nails 5 drops, 2 times daily
Clinically Proven for Bones 6 drops, 1 time daily
ch-OSA has been tested in rigorous double-blind placebo controlled clinical trials for both efficacy and safety.

The results are published in peer reviewed medical journals (see insert for details).

Suggested Use


For Skin, Hair, Nails and Joints: Take 5 drops, 2 times per day. Mix in with a 1/4 cup of liquid (preferably juice) and drink immediately.
For Bones: Take 6 drops, 1 time per day. Mix in with a 1/4 cup of liquid (preferably juice) and drink immediately.

Other Ingredients

Glycerol, purified water.

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, are taking prescription drugs, or are pregnant or lactating.

Keep out of the reach of children. Store at 59-86°F (15-30°C). Protect from light and moisture.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 5 drops (about 0.25 ml)
Servings Per Container: about 120
  Amount Per Serving %DV
Silicon (as Choline-Stabilized Orthosilicic Acid (ch-OSA) 5 mg *
Choline (as ch-OSA) 100 mg *
*Daily Value (DV) not established

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Less wrinkles - really.

Posted by Reviewer1990928 on Dec 23, 2008

I've been using this product for about 3 weeks (10 drops per day). I originally bought it to improve the quality of my hair, which is thin and brittle. I haven't noticed any change in my hair yet, but the improvement in my skin has been dramatic. I was starting to develop those fine, thin wrinkles on my face that cause the skin to look a bit like crumpled tissue-paper. My skin was also very dry and dull. But now the wrinkles are greatly reduced, and my complexion is clear and glowing. I just look much younger. If it works this well on my skin, I can't wait to see what happens to my hair in a couple of months. Highly recommended.

Was this review helpful to you?

64 people found the following review helpful

Outstanding Product

Posted by Reviewer2505242 on Feb 14, 2007

I've been using BioSil for approximately one year and have found a tremendous difference in the length and strength of my hair and nails. Colleagues, Friends and woman at the Hair/Nail Salon/Spa are always complimenting me on my nails, hair and skin. I would recommend the product to everyone. I've actually purcahsed it for others so they to may benefit from the mineral. After having utilized artificial nails for many years and thinking my nails would never grow it is amazaing to see long, strong, beautiful nails all the time. Don't hesitate...based on unbelief! Sincerely, JDR

Was this review helpful to you?

49 people found the following review helpful


Posted by Reviewer2703564 on Dec 28, 2009

Take this product for severe hair loss in conjunction with your neocell pure collagen. magic results. hair strong shiny and regrowing. i lost that much hair a naturopath said i would be bald in 2 months well it is 3 months now and have a nice head of hair and growing well nails are growing wil i have to cut them every 5 days.

Was this review helpful to you?

44 people found the following review helpful

great product. Click on my username for more reviews!

Posted by More-Special-Offers on Jul 30, 2013

Wow, definetely helping with fine lines around eyes, and my acne scars are MUCH less visible! I couldn't realise why. But then I though it must be it, since I am not using any other supplements or special creams. I was using it on and off for couple weeks and didn't see much difference, and was thinking why everyone was so happy about it. But only after 2 weeks everyday use I've seen huge improvement. Please feel free to click "yes" if you find my review helpful for you. Best wishes

Was this review helpful to you?

43 people found the following review helpful

Skin food

Posted by Reviewer2519351 on Mar 01, 2010

Too soon to comment on hair, but after a week, this has already made my skin less sensitive and dry. I also got carded yesterday (I'm 43) by a 30-year-old who thought I was younger than she. I wasn't wearing a bit of makeup. I would highly recommend for those with itchy, dry, sensitive skin. Instructions say take with juice; don't try mixing it with water. Tastes like something a dog would roll in.

Was this review helpful to you?

42 people found the following review helpful

See All Reviews