Just how smart is a baby sheep anyway?

Following on from yesterday's post, 101 (commercial) uses for placenta, it seems the market no longer relies on women consenting to have their placenta mushed up into face cream for anyone to smear into their pores.

Sheep are being used to fill the gap.

Baby Sheep Essence is made from sheep placenta. I'm not sure which makes me feel ickiest... health products made from a random person's placenta or a random sheep's.

Even more curious: the cost for a 100ml tube of people placenta cream is $3.99 whereas 200 capsules of baby sheep placenta costs $66.95!?

What's in sheep placenta that's so much more valuable that human placenta? Surely it can't be rarer to access so the price isn't pushed up by the free market laws of supply and demand so is it a question of quality?