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Just found this “study” from 2017. Three volunteers apply a topical for three days and then tested negative. All this proved, IMHO, was that three days of application wouldn’t show up on their particular drug screening.
What about long-term use of a high-THC oil as a topical? I’m hoping to help a young man paralyzed from the sternum down find some relief from the internal pain pushing him to the edge of sanity. There are many others here I was also planning to give double-strength oil to that can’t fail a drug test or they’ll be dropped from pain management.
But at the moment I’m watching a video on Green Flower Media that suggests topicals applied to the areas where veins are close to the surface - for instance your wrists, the legs where veins come close to the surface, your palms, or the soles of your feet - might result in a positive test.
This is the first I’ve heard any canna professional say this. These areas she speaks of are the very places we advise you apply a topical if you’re attempting to hit deep pain that you can’t reach any other way.
WTF?
Source
Original publication:
Forensic Science International
Volume 272, March 2017, Pages 68-71
Topical application of THC containing products is not able to cause positive cannabinoid finding in blood or urine.
Hess C, et al. Forensic Sci Int. 2017.
Abstract
A male driver was checked during a traffic stop. A blood sample was collected 35min later and contained 7.3ng/mL THC, 3.5ng/mL 11-hydroxy-THC and 44.6ng/mL 11-nor-9-carboxy-THC. The subject claimed to have used two commercially produced products topically that contained 1.7ng and 102ng THC per mg, respectively.
In an experiment, three volunteers (25, 26 and 34 years) applied both types of salves over a period of 3days every 2-4h. The application was extensive (50-100cm2).
Each volunteer applied the products to different parts of the body (neck, arm/leg and trunk, respectively). After the first application blood and urine samples of the participants were taken every 2-4h until 15h after the last application (overall n=10 urine and n=10 blood samples, respectively, for each participant).
All of these blood and urine samples were tested negative for THC, 11-hydroxy-THC and 11-nor-9-carboxy-THC by a GC-MS method (LoD (THC)=0.40ng/mL; LoD (11-hydroxy-THC)=0.28ng/mL; LoD (THC-COOH)=1.6ng/mL;. LoD (THC-COOH in urine)=1.2ng/mL).
According to our studies and further literature research on in vitro testing of transdermal uptake of THC, the exclusive application of (these two) topically applied products did not produce cannabinoid findings in blood or urine.
What about long-term use of a high-THC oil as a topical? I’m hoping to help a young man paralyzed from the sternum down find some relief from the internal pain pushing him to the edge of sanity. There are many others here I was also planning to give double-strength oil to that can’t fail a drug test or they’ll be dropped from pain management.
But at the moment I’m watching a video on Green Flower Media that suggests topicals applied to the areas where veins are close to the surface - for instance your wrists, the legs where veins come close to the surface, your palms, or the soles of your feet - might result in a positive test.
This is the first I’ve heard any canna professional say this. These areas she speaks of are the very places we advise you apply a topical if you’re attempting to hit deep pain that you can’t reach any other way.
WTF?
Source
Original publication:
Forensic Science International
Volume 272, March 2017, Pages 68-71
Topical application of THC containing products is not able to cause positive cannabinoid finding in blood or urine.
Hess C, et al. Forensic Sci Int. 2017.
Abstract
A male driver was checked during a traffic stop. A blood sample was collected 35min later and contained 7.3ng/mL THC, 3.5ng/mL 11-hydroxy-THC and 44.6ng/mL 11-nor-9-carboxy-THC. The subject claimed to have used two commercially produced products topically that contained 1.7ng and 102ng THC per mg, respectively.
In an experiment, three volunteers (25, 26 and 34 years) applied both types of salves over a period of 3days every 2-4h. The application was extensive (50-100cm2).
Each volunteer applied the products to different parts of the body (neck, arm/leg and trunk, respectively). After the first application blood and urine samples of the participants were taken every 2-4h until 15h after the last application (overall n=10 urine and n=10 blood samples, respectively, for each participant).
All of these blood and urine samples were tested negative for THC, 11-hydroxy-THC and 11-nor-9-carboxy-THC by a GC-MS method (LoD (THC)=0.40ng/mL; LoD (11-hydroxy-THC)=0.28ng/mL; LoD (THC-COOH)=1.6ng/mL;. LoD (THC-COOH in urine)=1.2ng/mL).
According to our studies and further literature research on in vitro testing of transdermal uptake of THC, the exclusive application of (these two) topically applied products did not produce cannabinoid findings in blood or urine.
What kind of edibles were you planning to make that a little graininess would be a problem?
does that mean it's time for moonshine?
You have this way with words I find delightful. Lol! 
