possible vehicles

[CCS]

I think with any vehicle we choose, we don't want to overdose on one thing. A mixture is a good ideal, especially with fatty acids, since we don't want one drowning out the others in the skin.

I'm going to start a list, and add the MSDS health info for each one. Please add more to the list if you want.

 

[CCS]

Water

Very safe, especially in long run.

But I don't know if it will get the active ingredients in the best way. Grapeseed extract is not soluble in pure water.
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Propylene glycol

Inhalation:
No adverse health effects via inhalation.
Ingestion:
Relatively non-toxic. Ingestion of sizable amount (over 100ml) may cause some gastrointestinal upset and temporary central nervous system depression. Effects appear more severe in individuals with kidney problems.
Skin Contact:
Mild irritant and defatting agent, especially on prolonged contact.
Eye Contact:
May cause transitory stinging and tearing.
Chronic Exposure:
Lactic acidosis, stupor and seizures have been reported following chronic ingestion.
Aggravation of Pre-existing Conditions:
Kidney disorders.

PPG is a great solvent and good penetration enhanser
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Sorbitol

Toxicology
No known hazards.
Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)

ORL-RAT LD50 16000 mg kg-1
SCU-RAT LD50 29600 mg kg-1
IVN-RAT LD50 7100 mg kg-1


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ethanol

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various oils and fatty acids

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octyl salicylate

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glycerol

Harmless.

Greesy, not a good penetration enhanser, but will dissolve anything. Soothing.

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pre-made vehicles like creams in the store. must see their ingredients
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OK, I have to knock out some homework, but i'll be back later.

 

[CCS]

yeah, don't put any trans fats on your skin. That stuff will interfere with your body's ability to make GLA from ALA, though maybe you have to eat it to get that problem.