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Product Reviews

Source Naturals DLPA -- 750 mg - 60 Tablets

Supports and Alert State. DL-Phenylalanine or DLPA is a 50/50 mixture of the D and L forms of the amino acid phenylalanine (phenylalanine is one of the few amino acids that can be utilized in its D form). Researchers believe that D-phenylalanine (DPA) inhibits the action of an enzyme that breaks down endorphins and enkephalins. These are proteins which bind to opiate receptor sites in the brain thereby influencing the perception of discomfort. By obstructing the action of this enzyme DPA may extend the life of endorphins and enkephalins and their positive influence on comfort levels. L-phenylalanine is the precursor to two neurotransmitters that help support an alert state.
Overall rating:
4 / 5
4
 / 
5
(7 reviews) 5
Open Ratings Snapshot
Rating breakdown 7 reviews
5 Stars
5
4 Stars
0
3 Stars
0
2 Stars
1
1 Star
1
6 out of 7(86%)customers recommend this product.
Customer reviews for Source Naturals DLPA -- 750 mg - 60 Tablets
Review 1 for Source Naturals DLPA -- 750 mg - 60 Tablets
Overall rating:
1 / 5
1 / 5
oversleeping
fromrohnert park, ca
Age:55-64
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Self-referred
Reason for usage:Specific health concern
Duration of use:Less than 30 days
hard to swallow
 November 3, 2012
"These are the biggest uncoated pills I've ever swallowed- sometimes on the 4th or 5th try."
0points
0of 0voted this as helpful.
Review 2 for Source Naturals DLPA -- 750 mg - 60 Tablets
Overall rating:
5 / 5
5 / 5
ukey
Age:65-74
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Self-referred
Reason for usage:Specific health concern
Duration of use:Over 180 days
Source Naturals DLPA
 September 25, 2012
"love this product, I take one right when I wake up--I take another one couple hours later. I wrote on this once before--I'll say it again, clears your tired brain--I am 66--The DLPA---also helps with pain issues, whereas the L-phenylalanine, more appetite depressant---the hippies liked the the L-p----there are no jitters from DLPA--you don't even know you took it for a while, and then you just feel better in your brain---I have never taken in afternoon,because, might keep you awake at night ??"
+2points
2of 2voted this as helpful.
Review 3 for Source Naturals DLPA -- 750 mg - 60 Tablets
Overall rating:
5 / 5
5 / 5
Value:
5 / 5
5 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
1veryblessedwoman
fromMPLS, MN
Age:25-34
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Self-referred
Reason for usage:Promote overall health
Duration of use:Over 180 days
 September 1, 2010
"great product, helps to think clearly"
+2points
2of 2voted this as helpful.
Review 4 for Source Naturals DLPA -- 750 mg - 60 Tablets
Overall rating:
5 / 5
5 / 5
Value:
5 / 5
5 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
scgirl
Age:55-64
Gender:Female
Referral source:Physician
Reason for usage:Specific health concern
Duration of use:30-60 days
 June 9, 2008
"great energy booster"
+1point
1of 1voted this as helpful.
Review 5 for Source Naturals DLPA -- 750 mg - 60 Tablets
Overall rating:
2 / 5
2 / 5
Value:
4 / 5
4 / 5
Quality:
4 / 5
4 / 5
Effectiveness:
2 / 5
2 / 5
rushbabe
fromwest coast
Age:55-64
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Self-referred
Reason for usage:Specific health concern
Duration of use:61-180 days
opposite effect
 October 5, 2007
"I used it for energy in AM. It seems to actually slow me down instead."
-3points
1of 5voted this as helpful.
Ratings-only reviews for Source Naturals DLPA -- 750 mg - 60 Tablets
Based on the average of (2) ratings-only reviews
Overall rating:
5 / 5
5 / 5
2 out of 2 recommend this product