Name: L-Serine 500mg
Brand: Douglas Labs
SKU: SERI2
Price: 41.66 USD
Availability: InStock
Rating: 5 (1 reviews)

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L-Serine supplies 500 mg of the amino acid in each capsule.

As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

Serving Size: One Capsule

Amount Per Serving
L-Serine ... 500mg

Other Ingredients: Cellulose, gelatin (capsule) and vegetable stearate.

This product does not contain

yeast
wheat
gluten
soy
milk/dairy
corn
sodium
sugar
starch
artificial coloring
artificial preservatives
genetically modified organisms (GMOs)

For optimal storage conditions, store in a cool, dry place. Tamper resistant package, do not use if outer seal is missing.

This product does not contain

yeast
wheat
gluten
soy
milk/dairy
corn
sodium
sugar
starch
artificial coloring
artificial preservatives
genetically modified organisms (GMOs)

Let customers speak for us

from 2226 reviews

Literally a life saver

I am allergic to whey protein and chicken eggs (and something else I haven't yet identified) with anaphylaxic reactions. My throat closes up very quickly if I inadvertently ingest one of these. Isopathic phenolic rings have saved my life more than once. I am not a medical professional , and I am not saying this should be a replacement for an epipen or calling emergency services... But for me, who is stubborn and refuse to do both, this is a literal lifesaver. It works within minutes and loosens my throat back up. I don't know if it works for other types of reactions, but for me, it brings me back out of anaphylaxis quickly. If this company ever stops making this, I'm literally in trouble. Everyone with allergies should have this product in their purse or in their medicine cabinet.

Amy Hansen

08/30/2025

Isopathic Phenolic Rings

I had an issue with my delivery where USPS marked the package as delivered

I had an issue with my delivery where USPS marked the package as delivered, but it was nowhere to be found. I hope a different courier can be considered in the future to help avoid similar issues and make things a bit easier. I reached out to the customer service team and was genuinely impressed with the follow-through and support provided to ensure the package was eventually delivered. Thank you for the assistance — it was much appreciated.

Enid

08/28/2025