It can and will make your hair texture different and drier, and your hair right how is IMMACULATE. You can, and I have lightened my hair at home many times (and still do before I henna to get vibrant copper hair), but its easy to regret it if you dont know what you are going to. Then once it's lifted, go over it with a semi-permanent color to get the tone you want. Just be aware, cutting it with shampoo/conditioner will also cut the strength of the developer, so if you do a 1:1 ratio with 20 volume, you're actually getting more like 10. Maybe do a bleach bath? That way it's easier to control and fully saturate your hair. If I were you, I would bleach your hair with a super low-volume developer, since you don't have THAT far to go. In order to lift your hair, you'd probably have to use so much lemon juice that you'd end up frying your hair anyway, so you might as well just use bleach.

And lemon juice is actually pretty rough on the hair anyway since it's so acidic, it's very drying, and I'm pretty sure you have to use heat/UV to get it to react, adding even more opportunity for damage. Same with the rest of those at-home lighteners-they're not super strong and probably won't get you what you want. AFAIK they're not recommended or designed for darker hair, so I don't think they would have much effect on hair as dark as yours. They're very subtle and gradual, even on me-they just keep my hair looking like I've been out in the summer sun, even throughout the winter. I use those kinds of things (the John Freida Go Blonder line), but I'm already a natural blonde. I have heard that there are some hair products that people use in the shower Once it's bleached to the level you want, mix a 10 volume developer into a medium brown dye.ДЄ bleach wash might not be strong enough if you have dye/henna in your hair.ДO NOT USE BOX DYE!!!! Get your dye/developer from Sally's. More like damp), mix shampoo and conditioner in your bleach mix and put this on your hair while your hair is damp. Leave your hair a little wet (not dripping.

If you have virgin hair you can maybe try a bleach wash if you don't wanna just use the dye to try and lift it. That's just how lifting coloured hair works :/ Hair dressers run into this same issue so it's not an issue of being inexperienced.

You're gonna have to bleach it and it's unpredictable on what parts will lift and which parts might be a struggle. If you have left over dye/henna you're gonna run into some problems. You can get a medium brown hair dye and use 30 volume developer and it should lift it to where you want it. If you have absolutely no dye or henna in your hair you shouldnt have to bleach it. I only had to bleach it once, then go over it again with a bleach wash to lift it to a level 8. My friend who does hair said he was really impressed with my results because it came out so even and I didn't fry my hair. I went from naturally dark brown hair (like the first pic you posted) to a level 8 copper colour and i did myself at home. Your hair looks pretty healthy, so my non-professional opinion is that bleaching it at home should be fine provided you haven't bleached/dyed it previously. Having a buddy help you with application might be helpful in order to make sure that it comes out more or less evenly. Oxidation reactions (like bleaching one's hair) are exothermic, which means that they release heat as they happen - you should be ok, just keep an eye out If the hair gets too hot (physically warm), rinse immediately.

I have jet-black Asian hair and 30 vol can get me to light blonde in an hour. Check on it every few minutes to make sure that it hasn't gone too far. Keep an eye on your hair while it's bleaching. But in order to prevent that from being necessary, a few things to keep in mind are: Worst case scenario, you accidentally bleach to a dirty-blonde, in which case you can easily dye it back with stuff from Walmart.

Lighten dark hair