What is the difference? Which one is better?

Depends on your goals. For mental enhancement, ALCAR is best. For endurance and fat loss, I prefer PLCAR.
I've been taking ALCAR since time immemorial. Love it for the brain boost. Just started with SNS PLCAR and notice significant increase energy during training. ALCAR, and now PLCAR are both staples for me.
PES ALPHAMINE Log
h ttp://anabolicminds.com/forum/supplement-reviews-logs/213082-pes-alphamine-log.html
Probably meant NOW...ALCAR must have worn off.
Haha edited!
PES ALPHAMINE Log
h ttp://anabolicminds.com/forum/supplement-reviews-logs/213082-pes-alphamine-log.html
What about the third brother LCLT?
RecoverBro ELITE
Good question. I have a tub of NP LCLT sitting in my closet, waiting to use with with DAA/Erase Pro next month to bump androgen receptor sensitivity. But then I think I recently just read someone saying those effects from LCLT are minimal. Not sure.
PES ALPHAMINE Log
h ttp://anabolicminds.com/forum/supplement-reviews-logs/213082-pes-alphamine-log.html
NOW's ALCAR gives me headaches, It makes me wonder if it has di carnitine poisoning in it. I hardly used this thing of ALCAR I bought because of it. Been through about 20 cap at least but it's enough to convince me the headaches were consistent. Other ALCAR hasn't given me issues.
I am currently stacking all three, plus 1-Carboxy and Supersapponins, 2X ED. I feel great.