![40 vol developer and nothing else on a test strand of hair. Left it in for 20 minutes, rinsed out and I don't see a difference. I don't want to go blonde 40 vol developer and nothing else on a test strand of hair. Left it in for 20 minutes, rinsed out and I don't see a difference. I don't want to go blonde](https://preview.redd.it/40-vol-developer-and-nothing-else-on-a-test-strand-of-hair-v0-ltp1srbfyqma1.jpg?width=640&crop=smart&auto=webp&s=6efe816d2cd5f6ba7266e20a5dfe4018176787a4)
40 vol developer and nothing else on a test strand of hair. Left it in for 20 minutes, rinsed out and I don't see a difference. I don't want to go blonde
![Truzone Trulites Cream Peroxide 12%- 40 Vol Hair Color Styling Developer Bleach 5032435705620 | eBay Truzone Trulites Cream Peroxide 12%- 40 Vol Hair Color Styling Developer Bleach 5032435705620 | eBay](https://i.ebayimg.com/images/g/sI0AAOSwqu9VOaYm/s-l400.jpg)
Truzone Trulites Cream Peroxide 12%- 40 Vol Hair Color Styling Developer Bleach 5032435705620 | eBay
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