header_search header_signed-out header_signed-in header_cart sharefilled circlex
Added to Cart
Cart Total:
Customers Also Bought:
24/7 Help

Twinlab, L-Cysteine, 60 Capsules

$13.98 $13.98 (Saved $3.49)

Thank you!

Your email is being processed.

Twinlab, L-Cysteine, 60 Capsules

Click to zoom
Our Price:
You Save:
$3.49 (20)
Quantity Discount:
Buy 3+
(5% off)

Sorry, this product is no longer in stock.

Earn 5% Loyalty Credit ?
Quantity Discount
$13.28 each
(5% off)
Combo Offer: $25.93

Sorry, this product is no longer in stock.

Twinlab, L-Cysteine, 60 Capsules

In Stock
  • Expiration Date: 02/2022
  • Shipping Weight:
    0.84 lbs
    Switch to Metric units
  • Product Code: TWL-00122
  • UPC Code: 027434001229
  • Package Quantity: 60 Capsules
  • Dimensions:
    2.4 x 2.4 x 4.3 in, 0.5 lbs
    Switch to Metric units
Frequently Purchased Together
Product Overview


  • Free Form Amino Acid
  • Dietary Supplement

L-Cysteine is an amino acid.

Twinlab L-Cysteine capsules are easier to swallow and assimilate. Each capsule is oil free.

Packaged in a glass bottle for maximum stability, quality and freshness.

This product is manufactured at our own state of the art facility.

Suggested Use

Take one capsule daily, or as directed by a healthcare professional.

Other Ingredients

Cellulose, gelatin, magnesium stearate, medium chain triglycerides, silica.

Well tolerated by most highly allergic individuals. No tablet binders, coatings or colorings.

No added salt, artificial sweeteners, preservatives or salicylates.


Keep tightly closed in a cool, dry place.

Supplement Facts
Serving Size 1 Capsule
  Amount Per Serving % Daily Value
L-Cysteine (as L-Cysteine hydrochloride) 500 mg
† Daily Value not established.
iHerb Customer Reviews


Posted by FZR 9638 on Sep 20, 2017 | Verified Purchase

my hair is healthy and growing back. Enter F Z R 9638 for 5% off your order at check out.

Thanks for your feedback!

Hubby has more hair....

Posted by iHerb Customer on Jul 22, 2012 | Verified Purchase

Definitely more hair!!

Thanks for your feedback!

Fast delivery to UK

Posted by iHerb Customer on Jan 30, 2012 | Verified Purchase

No problems with order, fast delivery to the UK. Will be using again

Thanks for your feedback!


Posted by iHerb Customer on Apr 21, 2011 | Verified Purchase

I took this capsule while last week. I think it is good

Thanks for your feedback!

L-Cysteine 500 mg

Posted by iHerb Customer on Feb 07, 2011 | Verified Purchase

It was suggested by the dermatologist, along with other suggestions, that I take this supplement for hair care. I have been taking it for about 4 months. I usually get the product from Now Foods, but Now Foods was not available, so I ordered Twinlab instead. I have used Twinlab products and I am satisfied with them also.

Thanks for your feedback!