Phosphatidylserine vs CDP Choline

Phosphatidylserine

Reduces cortisol levels: "Drop the cdp and take the serine as it reduces cortisol."
Bioavailable: "I wouldn't take type of choline other than phosphatidyl, because it's the one which is most bioavailable."
Potential side effects for some individuals: "Anything “liposomal” will give me horrendous depression and anxiety."

Pros

Reduces cortisol levels
Bioavailable form of choline

Cons

May cause depression and anxiety in some individuals
Limited information available on effects

CDP Choline

Half-life of around 3 days: "Couldn't find much about the effects, but apparently CDP-Choline has a half-life of around 3 days depending on many factors."
Potential bioavailability issues: "I was taking 5g of it at a time and it didn't come close to 300mg of Alpha GPC. There may be bio-availability issues."

Pros

Long half-life
Boosts acetylcholine levels in the brain

Cons

Bioavailability issues
Limited subjective effects reported by some users

Comparison between Alpha GPC and CDP Choline

Immediate effects of Alpha GPC: "Alpha GPC will have more immediate effects than CDP Choline."
Dosage differences: "Most people seem to take 150-300-600mg of Alpha GPC than the 250-500mg CDP Choline."

Pros of Alpha GPC

Immediate effects reported
Lower dosage required compared to CDP Choline

Cons of CDP Choline

Limited immediate effects reported
Higher dosage required for effects compared to Alpha GPC

General Recommendations for Brain Fog/Weed Withdrawal

Lifestyle changes recommended: "Start with fixing your diet and getting into a good exercise routine before adding anything else."
Supplements suggested: Fish oil, Sunflower lecithin, B vitamins, Magnesium threonate, Lions mane, L-theanine, Multivitamin, choline, l tyrosine, 5 htp, Coq10, creatine
Exercise and sleep importance stressed: "Exercise and sleep of course."

Pros of Supplements

Aid in brain fog recovery
Support cognitive functions and neurotransmitter production

Cons of Supplements

Time required for noticeable effects
Individual response may vary

Through the provided Reddit comments, it appears that Phosphatidylserine is known to reduce cortisol levels and is considered a more bioavailable form of choline, while CDP Choline has a longer half-life and may have some bioavailability issues. Users have reported different effects with various choline supplements like Alpha GPC, CDP Choline, and ALCAR, with individual responses varying. Lifestyle changes, exercise, and specific supplements are recommended for brain fog or weed withdrawal symptoms, emphasizing the importance of patience and consistency in the recovery process.