Yehyang Hair
yehyang builds its hair range around two different jobs: everyday conditioning and permanent color. The Keratin Milky Essence and Silk Hair Essence are leave-in treatments meant to smooth and protect strands between washes, while the Hair Color Cream line covers the actual dye step, sold both as a plain base cream and as a shaded Squid Food formula that comes in black, dark brown, natural brown, and light brown. The separate Luxury Treatment Cream Color sits between the two, a toning cream aimed at refreshing color without a full re-dye. Together the lineup lets a shopper pick a leave-in essence for daily care or a color cream for the salon step, rather than guessing which yehyang product does which job.
By Skinsli editorial Updated
Buying guide
yehyang Hair: essences and color creams explained
yehyang splits its hair catalog into two clear jobs: daily leave-in care and permanent color. This guide walks through both essences and both color-cream formats so you know which product answers which need.
Keratin Milky Essence 540ml
A leave-in essence built for the "Milky Type" hair category, applied after washing to smooth the cuticle and cut down on frizz. The 540ml size is meant for repeat daily use rather than an occasional treatment.
Silk Hair Essence 100ml
A lighter, travel-friendly leave-in essence at 100ml. It targets the same smoothing job as the Keratin Milky Essence but in a silk-finish formula and a size meant for testing or topping up rather than a full daily routine bottle.
Hair Color Cream, unshaded base
The plain Hair Color Cream is the base cream in yehyang's color system, used on its own or as the developer partner for the shaded Squid Food line below. It is not a leave-in treatment: it is a dye-step product.
Hair Color Cream Squid Food, four shades
The Squid Food formula is the same color cream sold across four shade numbers: 1N black, 3N dark brown, 5N natural brown, and 7N light brown. The shade code is the only difference between the four bottles, so pick by target color rather than treating each number as a separate product line.
Luxury Treatment Cream Color
A separate toning cream positioned between the leave-in essences and the full dye creams. It is meant to refresh or deepen existing color rather than perform a full re-dye, which is why it is labeled a treatment cream rather than a color cream.
Choosing between the two essences
Both essences are leave-in, no-rinse formulas, so the choice comes down to size and finish: the Keratin Milky Essence's 540ml bottle suits everyday use, while the 100ml Silk Hair Essence fits a bag or a shorter trial before committing to the larger size.
Choosing a color-step product
If you know your target shade, one of the four Squid Food numbers gets you there directly. If you are refreshing color that has already faded rather than changing it, the Luxury Treatment Cream Color is the lighter-touch option, and the unshaded base cream is for mixing rather than a stand-alone dye job.
How the two categories work together
Color creams do the dye step at the salon or at home during a color session; the leave-in essences are for the days between color sessions, keeping strands smooth so the next dye or refresh goes on evenly.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What is the difference between yehyang's two hair essences?
The Keratin Milky Essence comes in a 540ml bottle meant for daily leave-in use, while the Silk Hair Essence is a 100ml silk-finish version. Both are no-rinse leave-in treatments; the choice is mostly about bottle size and finish preference.
What do the shade numbers on the Squid Food color cream mean?
1N, 3N, 5N, and 7N are shade codes for the same Hair Color Cream Squid Food formula: 1N is black, 3N is dark brown, 5N is natural brown, and 7N is light brown. They are the same product in four different target colors, not four different formulas.
What is the plain Hair Color Cream for, if the Squid Food line already has shades?
The unshaded Hair Color Cream is the base cream used in yehyang's color system, either on its own or paired with a Squid Food shade during mixing. It is not a leave-in treatment and is not itself a finished shade.
Is the Luxury Treatment Cream Color the same as a permanent dye?
No. It is a toning treatment meant to refresh or deepen color that has already faded, rather than a full permanent dye like the Squid Food shades. Use it between color sessions, not as a replacement for one.
Should I use the leave-in essences before or after coloring my hair?
The essences are for daily care between color sessions rather than for the coloring day itself. Keeping hair conditioned with the Keratin Milky Essence or Silk Hair Essence in the days before a color session helps the dye or the Luxury Treatment Cream Color apply more evenly.