I had not heard of Soil Lax and do not know anything about it.
In composting ---if you have mostly brown material---they suggest
adding blood meal to balance the browns.

Don't know if this helps or not.
Caroline

I thought this post was deleted because I never saw it after I posted, thinking it was flagged for promoting a product or something.

Is blood meal safe to use in a vegetable garden?

Use the brown material you have and do not worry about green until it is in good supply. Do not incorporate any composting materials into your soil until they are well rotted. If you have no other place to store them, use the compost materials as mulch or top dressing on the garden.
It sounds as if your soil needs more organic material. Buying products won't help.
As far as I know, blood meal is safe to use. But fertilizer is like makeup. You want to use the right product in the right place. There is no point in applying lipstick to your eyebrows. So why do you want to use blood meal on your garden?

I agree that these fancy products are just a waste of your money. Here's what you really need to do amend hardpack clay. Just dig in triple mixes. Very simple. Clay actually contains rich nutrients that benefit plants. You just need to make it available to the plants and to do that you, you try to insert compost in the soil. In my garden which was incredibly clayey, I broke up the clay and simply mixed in the compost. This allows for other creatures like earthworms to work in between. Roots from plants will continue breaking up teh soil for you.

I also add bonemeal instead of blood meal. That is just to add more phosphorus but again application depends on what your soil needs. The fears associated with these products are madcow disease- but I understand the records are scant on these. Still as a precaution I use gloves when handling these things.

For the moment, I would recommend triple mix to fix your garden. Triple mixes contain composted manure. Composted manure is for me a great nitrogen source for plants. It's slow release form of nitrogen. To me that's a better approach than a gigantic blast of nitrogen which boosts foliage growth but at the expense of flower or fruit growth.

Read up well on fertilizing before making your choice of amendments. But again, simple compost works best.

If you can make your own compost, even better. I also like the lasagna method when I do get lazy about digging. It breaks up the soil more slowly but it eventually does work.