Douglas Laboratories L-Serine

Douglas Laboratories
18 reviews
Douglas Laboratories L-Serine
Douglas Laboratories L-Serine Ingredients
Douglas Laboratories L-Serine Label
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Douglas Laboratories L-SerineDouglas Laboratories L-Serine IngredientsDouglas Laboratories L-Serine Label
Price:
$53.00
($0.44/pill)
Selection: 60 Capsules
 Free shipping  45 Day Return Policy

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Customers rate us 4.9/5 based on 22546 reviews.

Description

Supplement First is an Authorized Retailer for Douglas Laboratories.

  • Douglas Labs L-Serine supplies 500 mg of the amino acid in each capsule. 
  • L-serine can play important roles in the body to form the sulfur-rich amino acid, L-cystine. 

Supplement Facts 

Serving Size: 1 Capsule Amount Per Serving %DV
L-Serine 500 mg *

*Daily Value not established.

Other ingredients:

Cellulose, gelatin (capsule) and vegetable stearate.

Side Effects:

No adverse side effects have been reported.

Storage:

Store in a cool, dry place, away from direct light. Keep out of reach of children.

*These statements have not been evaluated by the U.S. Food and Drug Administration. This product is not intended to treat, mitigate, diagnose or cure any disease.

Customers said this supplement effectively supports memory and cognitive function. Many reported "noticeable improvement in memory recall" and better sleep quality. Benefits typically appear within days to weeks. Some noted reduced stress and improved awareness. A few shoppers needed more time to assess effectiveness. Customers praised the quality and value.

  • 5 stars: 15 (83%)
  • 4 stars: 1 (6%)
  • 3 stars: 2 (11%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Mary L.
L-Serine

Love the product. My husband and I both have been taking the product and notice a difference in memory and awareness.

N
Nola H.

Douglas Laboratories L-Serine

H
Helena G.

I like this product. It has helped me fall asleep faster and stay asleep longer. I feel calmer.

J
Janice Y.
Quality product and service

My dad has been taking the L-Serine and he says he feels sharper. It is easy to order and arrives on time. Thanks Supplement First!

L
Lisa C.
Good Quality Product, Reliable Delivery

Very happy with the product and the service. I will keep ordering L-Serine from Douglas Labs.

B
Bibi M.
Excellent supplement.

A great price from a reputable company is a bonus.

L
Linda M.
Great Confidence in Purity

Douglas Labs supplements are recommended by my physician AND the L-Serine made a noticeable improvement in my memory recall after a short time. I will keep taking this and I next will order for my sister.

P
Philip D.
L-Serine

After 5 days of use there has been a definite improvement in my sleep pattern. I recommended that my wife also take a daily capsule and after 3 days, she reported an improvement as well. Because L-Serine has also been recommended by CNN's Dr Sanjay Gupta (neurologist) as an aid to cognitive development, as a 74 year old I will continue to take a daily capsule.
We will definitely be placing a second order.

L
LeeAnn M.
Brain Vitamins

I have much better recall.

R
Rita E.
supplement for alzheimers

Mom began taking this a few months ago and her memory seems to be stable. I've noticed she's doing well.

T
Trish H.
L- serine

My sleep has improved since I began taking L-serine.

P
Paul R.
l-SERINE

It's effective

R
Rosemary M.

I have been taking l-Serine for over a year and the tremor in my lower leg has diminished.

R
Robert H.
l-serine

I have been using for 10 days. Too early to know if this is helping me

K
Karol B.
L-Serine

Been taking these for years. It's a great stress reducer.

C
Christine B.

Haven’t noticed any changes but I haven’t even been taking for 2 weeks.

J
Jeff H.
Easy to digest

Easy to digest

D
David S.
Placebo effect

What possible changes should one anticipate while newly using your product?

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