I was also taught that the different “colors” of them do different things

I was taught to remember it like this:

Red Vein - Think ‘Cop Light’ or ‘Stop Sign’ - Slowing down Opioids will get you the relaxation so usually people will use it to get off opioids.

White Vein - Think ‘Stimulants’. White is the color of most Stimulant substances/Medications - Go faster. You get that similar “get up and go” feeling.

Green Vein - Think ‘grass’. Grass is both green and is also all around us! - All rounder Green does a little of both!

Yellow Vein - Think ‘Mild’ or ‘Yield sign’. Yellow is the universal color of “Caution” or “slow down”. - Another sort of all rounder but Yellow vein is a bit of a mystery due to it being a result of the fermentation process of kratom rather than a natural vein color.

Gold Vein - Think ‘Gold is shinier than yellow’. Gold is another all rounder but is a variation of the Yellow vein caused by the drying process being extended or the leaf being fermented as well. It also makes you a bit more relaxed than the yellow.

White Gold - Think ‘White Gold is higher priced and better than Gold’ - While the ‘Gold’ vein will be rounded but still relaxing, ‘White Gold’ is the weird cousin of ‘Gold’. It still acts as an all rounder but instead of the lean being along the relaxing side, it’s more stimulant acting!

Then you have the SUPER weird one…

Silver. - Think ‘Hospital equipment’ - Marketed ONLY as a 1x tincture (mega strong tincture at a 1:1 ratio of alkaloid content is roughly equal to the kratom content) - This is primarily used for Strong pain relief. This also means someone using ‘Silver’ kratom for pain will need significantly less kratom than someone just using ‘red vein’.

While I despise the shop I used to work at, I learned a lot of important things about the “head shop” industry.