Contains 76% organic ingredients.
1. How often can I use this?
Not with every wash, that's the most important thing. Once a week is enough for most people, and you alternate it with your regular shampoo. Do you notice that your glow returns quickly? Then you can use it a bit more often. But don't overdo it: using a silver shampoo too often can dry out your hair and give it a dull, cool haze. Start with once and see how your hair reacts.
2. Will my hair turn purple if I leave it in too long?
That is possible, especially with very light or porous hair that absorbs pigment quickly. Therefore: start carefully. Leave it in for only a short time the first time and see what happens. Did your hair turn too purple after all? Don't panic, just wash it once or twice with your regular shampoo and the glow will fade. Using it too much once can always be corrected.
3. How long do I leave it on?
That depends on your hair. Naturally blonde, gray, or white? Short, half a minute to one minute is often enough. Bleached hair or highlights? Then you can aim for a few minutes. My tip: start on the short side, you can always leave it on longer next time. Too short just means less effect, too long can leave a purple tint. So, build it up carefully.
4. Does this help against yellow or orange?
Mainly against yellow. This shampoo has purple pigments, and purple is opposite yellow on the color wheel, so it neutralizes that yellow glow. Do you have more of an orange or coppery tint in darker blonde hair? Then a blue-tinted shampoo works better. For most blonde and gray shades, this purple one is exactly what you need.
5. On my scalp or only the lengths?
Mainly where the glow is, which is usually your lengths and ends. Distribute it evenly over the spots that are the yellowest. You don't need to massage it firmly into your scalp. Rinse thoroughly afterwards, and always follow up with a conditioner or mask. A silver shampoo cleanses quite thoroughly, so your blonde hair needs that extra care.