This video shows how to paint the blood phials/syringes and leather strap for Mephiston of the Blood Angels. It looks at NMM and OSL as well.
The following paints were used:
Games Workshop: Sotek Green, Evil Sunz Scarlet, Mournfang Brown, Cadian Fleshtone, Rhinox Hide
Vallejo: Neutral Grey, White, Pale Grey Blue