613 is the only colour in the range that is really a starting point rather than a finish. It is hair lifted as light as human hair goes, which is exactly why it can become any other colour — and exactly why it needs more from you than a natural black unit does.
What 613 actually is
613 is a colour code for the palest blonde. Getting there means bleaching the hair repeatedly until almost all natural pigment is gone. Nothing arrives that colour; every 613 unit on the market has been lifted.
So yes — 613 hair is already bleached, and anyone telling you otherwise is selling something. That is not a defect. It is the point. A 613 unit is the base colourists want precisely because it will take any tone you put on it.
Why density matters more here
Lifting hair removes mass from each strand. A 613 unit at 150% density reads noticeably thinner than a natural black unit at the same number, because each individual strand is finer. For a blonde unit we would push most people to 180% as a minimum and 200% past 22 inches. The density guide explains how those numbers look in practice.
Toning and brassiness
Blonde hair does not stay the blonde you bought. Mineral deposits in tap water, UV, heat styling and product build-up all push it warm, and warm on a pale base reads yellow or orange.
- Purple shampoo neutralises yellow. Use it every third or fourth wash, not every wash — overuse leaves a lilac cast on hair this pale.
- Blue shampoo neutralises orange, which is what you get on a 613 that has been dyed darker and is fading back.
- Filtered or bottled water for the final rinse makes a real difference if you live somewhere with hard water.
Can you dye a 613 wig?
Yes, and this is the main reason to buy one. Because the pigment has already been stripped, a 613 takes colour directly — no bleach needed. Semi-permanent and demi-permanent dyes work best and do the least damage.
Two rules. Strand test on hair from the nape first, because human hair wigs take colour faster and darker than growing hair does. And accept that dyeing voids most return policies, including ours — once a unit is coloured it cannot go back. Our returns page sets out where that line sits.
Realistic lifespan
A 613 will not last as long as the same unit in natural black. The hair has been through more, and the cuticle is more porous, which means it dries faster and tangles sooner. Expect roughly two-thirds the life, and offset it with gentler washing, lower heat and a weekly conditioning treatment. The longevity guide covers the routine.
Where to start
Selene is our 613 — 13x4 HD lace, straight, 180% and 200% density. Buy it as a finished blonde if that is what you want, or as the base for a colour you have in mind. The rest of the coloured range is there if you would rather buy the end result than make it.