No—semi-permanent hair colors cannot cover grey hair. Since they don’t contain ammonia or peroxide, they can’t lift or change your natural pigment. Instead, they only coat the outer layer of pre-lightened or bleached strands. On natural greys, the pigments don’t usually take or show as intended. Semi-permanent shades are ideal if you want to try vibrant, fashion-forward colors without long-term commitment, but not if you’re looking to hide greys. Bleaching is always needed first—even if your hair is already light or grey—for the pigments to stick properly. Once pre-lightened, the color deposits easily, giving bold tones that last 6–12 washes before fading out naturally. This way, you can explore fun colors while keeping the flexibility to switch shades often.

Yes—2.Oh! Semi-Permanent Hair Color is completely safe and gentle. It has a nourishing base enriched with sunflower seed extract and argan oil, which help condition your hair, reduce frizz, and leave it soft and shiny after every use. Since it only coats the surface of the hair, it doesn’t damage your strands the way permanent dyes can. It’s also perfect for refreshing your color, because you don’t need to use ammonia or peroxide every time. This makes it a kinder, low-commitment way to keep your color looking vibrant while keeping your hair healthy and smooth.

Semi-permanent hair colors do not show up on natural grey hair because grey strands are more resistant and the pigments cannot deposit effectively. Unlike permanent dyes, they don’t contain ammonia or peroxide, which means they cannot lift or alter the natural pigment inside the hair shaft. For anyone with greys who wants vibrant or visible results, bleaching is always required first—even if your hair is naturally light or silver. Pre-lightening creates the perfect base that allows the pigments to adhere properly.

With 2.Oh! Semi-Permanent Hair Colors, you get the added benefit of MicroPure Pigments. These ultra-fine, high-performance pigments deliver richer, more even, and longer-lasting color on pre-lightened hair. Once your greys are bleached, the shades can last around 6–12 washes, fading gradually and evenly. Plus, our formulas have a nourishing base with argan oil and sunflower seed extract, which help reduce frizz, add shine, and leave your hair feeling soft and smooth after every use.

On its own, semi-permanent hair dye is not effective on natural grey hair, since grey strands are resistant and don’t absorb pigment. To achieve visible, vibrant results, bleaching is always required first—even if your hair is naturally light or silver. Pre-lightening prepares the hair so the pigments can deposit evenly and show their true intensity.

The best choice for grey hair is a formula that combines rich pigments with nourishing care. 2.Oh! Semi-Permanent Hair Colors are crafted with MicroPure Pigments that deliver richer, more vibrant, and longer-lasting tones once the hair is pre-lightened. Alongside bold color, our nourishing base with argan oil and sunflower seed extract helps reduce frizz, add shine, and leave your hair feeling soft and smooth. This makes it ideal for anyone looking to refresh their look without harsh chemicals like ammonia or peroxide every time.

To achieve the perfect 2.Oh! Steel Grey shade, your hair needs to be bleached to almost white platinum blonde. Because this is a delicate pastel tone, any trace of yellow or brass will make the result look muddy instead of the desired silver-grey shade. Most people require 2–4 bleaching sessions to lift their hair light enough for the color to show its true brilliance. After bleaching, it’s important to use the 2.Oh! Anti-Yellow Shampoo—our powerful purple shampoo that cancels out leftover yellow undertones. This step creates a clean, cool base, ensuring the final result is a smooth, even-toned ash grey or silver hair look. Once applied, the 2.Oh! Steel Grey Semi-Permanent Color lasts around 4–6 washes and fades evenly, while the nourishing base with argan oil and sunflower seed extract helps keep your hair soft, shiny, and frizz-free.