Barry M Silk Effects polishes have just come out in shops recently, and the swatches of them posted online have been absolutely stunning! I took advantage of Boots' 3 for 2 offer to buy Heather, Pearl and Meadow and try them out.
Heather is a gorgeous soft purple, so light in colour. The "silk effect" finish is a soft matted shimmer, which only enhances how delicate the colour is. The polish is slightly on the sheer side but 2 coats were still enough for good coverage.
The one big worry I had with these polishes was how well they would last without top coat. I applied Heather, let it dry completely (at least I thought I did) then went to wash my hair... and I came out of the shower with lots of marks on my thumbnail and a little scratch on my middle fingernail. Gutted! That said, I subsequently made it through 3 hours of office volunteering without much further damage, so perhaps you just need to make well and truly sure it's dry before fiddling around with your hair and stuff?
Here it is: