Just adding to my info above, I'm sure I remember the creme developer used to be in percentage, but now they list it in vol.
You can get 20, 30 or 40 vol in either 200ml or 1L bottles. From what I've read its best to get the highest concentration as you can water it down later if necessary.
Did a bit more reading by the time I got to the end of http://eab.abime.net/showthread.php?t=37808&page=45 some were saying all you need is NapiSan/Vanish Oxi Action combined with the Creme Developer, some were saying you needed the developer only, and some were saying the Oxi alone is enough since there are hydrogen peroxide elements in it (but you need the rest to make it into more of a paste for case applications). At this rate it looks like you can pick a retrobrite ingredient at random and it does the whitening on its own...
Did notice someone used 'powdered bleach'. The result looked a bit, well, bleached...
...Also note that Retr0brite is only a temporary solution. The process will start again immediately after you do it, and even seems to get yellow again a LOT quicker. People say to clear laquer your cases to stop it reoxidising.
You can get 20, 30 or 40 vol in either 200ml or 1L bottles. From what I've read its best to get the highest concentration as you can water it down later if necessary.
Did a bit more reading by the time I got to the end of http://eab.abime.net/showthread.php?t=37808&page=45 some were saying all you need is NapiSan/Vanish Oxi Action combined with the Creme Developer, some were saying you needed the developer only, and some were saying the Oxi alone is enough since there are hydrogen peroxide elements in it (but you need the rest to make it into more of a paste for case applications). At this rate it looks like you can pick a retrobrite ingredient at random and it does the whitening on its own...
Did notice someone used 'powdered bleach'. The result looked a bit, well, bleached...
...Also note that Retr0brite is only a temporary solution. The process will start again immediately after you do it, and even seems to get yellow again a LOT quicker. People say to clear laquer your cases to stop it reoxidising.