Kraig Biocraft Laboratories Inc (KBLB)

[ImjinBridger]

taken from kblb website which looks to have been recently updated:

"These recombinant spider silk fibers are composed of a unique combination of spider silk protein and silkworm silk protein."

Web site may have updated this, but the company released this in some form back around 2010 or 2012, or earlier.
I had to test a material and create a stress/strain curve for a Material Science class in 2012. I was going to use Monster Silk. I remember explaining to the professor that Monster Silk was around 3% to 5% spider silk. Maybe Kim was quoted saying this in an article or something. I don't remember where, but he said it somewhere. Of course they declined my request for a small sample to test, so I had to use fishing line instead.
Increase the carbon content in hot rolled steel a few percentage points and it becomes way stronger and tougher. It's the same concept.
Every once in a while, someone likes to throw it out there that KBL doesn't produce spider silk, like they're catching the company in a lie. It's not something they are hiding and it's not new. Spider silk only comes from one place. A spider.