Review (4/5): Not amazing, but a nice product.
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I had never used a "bamboo serum" when I ordered this and was curious about it.
Predictably, I can't tell that it 'helped supercharge collagen production,' or 'lift sagging skin,' or 'reduce the appearance of age spots' (no serum will do that), but I do like the way it helps firm my skin before I apply makeup. It has a sticky feel coming out of the bottle (mine came with a dropper rather than a pump), and it feels a bit odd going on -- sort of like rubbing mayonnaise into your skin. But then it absorbs well and leaves my skin a bit tighter and smoother. One reviewer has perfectly described the effect as akin to putting on pantyhose -- everything just feels held together nicely.
I can't honestly say I will re-order this, because I use a pore refiner that does a better job of leaving my face makeup-ready, and Vitamin C serum seems to leave my skin clearer and nicer. But this works well enough that I finished the bottle.
For those who want to use bamboo serum, this one is probably worth a try. Take a look at the wide variance in product pricing.