Whether going into the salon orDIYing at home, it’s important to understand the basics of hair dyes.

It’s great for those who want a more lasting and noticeable change in hair color.

What It Does

Permanent hair dye works via a combination of ammonia andperoxide, Gibson explains.

Beyonce, Hayley Williams, and Auli’i Cravalho

@beyonce/ Instagram / Getty Images / Byrdie

The peroxide then helps oxidize and activate the color molecules, allowing them to penetrate the hair shaft.

Who It’s For

Permanent hair dye is a great option for anyone looking tocover up grays.

Note that the cost can vary greatly depending on the salon, experience of the stylist, and location.

Beyonce with white blonde hair

@beyonce/ Instagram

As such, Gibson suggests using a color-safe shampoo, like the Joico K-Pak Color Therapy Shampoo.

As hair grows, the natural color at the roots will start to show.

You’ll need to visit the salon for touch-ups every few months to maintain a consistent look.

Hayley Williams with natural red hair and bright red face-framing pieces

Getty Images

So typically, hair needs to be pre-lightened to use semi-permanent color.

Semi-permanent dye doesn’t contain any ammonia or peroxide.

Maintaining a semi-permanent color requires more frequent app than a permanent color.

Camila Morrone with demi-permanent chocolate hair

@camilamorrone/ Instagram

But other than that, there’s no real maintenance routine; it simply washes out over time.

Still, Gibson suggests using a color-safe shampoo to wash and protect the hair.

The ammonia-free formula makes it gentler on the hair than permanent dye, but less long-lasting.

Auli’i Cravalho with temorary bright pink hair

Getty Images

The result lands somewhere in between permanent and semi-permanent dye.

It’s also worth noting that demi-permanent dye has limited lightening properties.

It’s also great for those looking for a lower maintenance routine.

Florence Pugh with glossy white blonde hair

@colorbymattrez/ Instagram

Demi-permanent dye fades gradually without a distinct line of demarcation, offering a more natural-looking grow-out.

Generally, demi-permanent dye can last up to 30 washes.

Considering various factors, demi-permanent hair dye can cost anywhere from $75 to $1000.

Perhaps the greatest benefit of demi-permanent hair dye is its low maintenance.

Temporary Hair Color

Temporary hair color is a single-use, wash-out color.

It’s the quickest and least permanent pop in of hair color on the market.

Temporary hair dye coats the outside of the hair shaft in pigment, which washes out when shampooed.

It won’t lighten the hair or cause any permanent changes to hair color.

It can also help spice up a look for a specific event without requiring a commitment.

Temporary hair color washes out within one or two shampoos.

There’s really no maintenance needed with temporary hair dye since it washes out immediately anyway.

Translucent color glazes last anywhere from eight to 12 weeks, or six to 12 washes.

Prices vary greatly, but it’s always much less expensive than a color change.

Ramos estimates a translucent color glaze can cost anywhere from $30 to $60.

Pureology’s Color Fanatic Top Coat + Clear Hair Gloss is a great at-home option.

For at-home care, Ramos echoes previous suggestions of color-safe shampoos and conditioners.