Hair serums with the weight printed on the bottleFree shipping over $45All prices in USD
Northline

The Curl Week

The top of the weight scale, used the way it is meant to be

Top weight in this box

Tops out at 4 of 5

A routine states the heaviest thing in it rather than a single per-application number, because the products in it are used on different days and in a set order. That order is under “How to use” below.

$92.00

USD
1

Free standard shipping. Arrives in 3–5 business days. 45-day returns.

What is in this routine

Bought separately$112.00
As a routine$92.00

Built for curly, coily and coarse hair, which is the one place in this catalog where the heavy end of the scale is the right answer rather than a warning. Nothing in here is trying to be light.

Wash with CL-01, mask with CN-03 for ten minutes, then CN-04 and SR-05 onto soaking-wet hair in sections and dry without touching it. The order matters more than the products do.

Highest weight in the box: 4.

The ingredient record

Everything in this formula, stated plainly, and the reasoning behind the number on the bottle. The same record is printed on the insert in the box.

Frequency
A complete week
Ingredients (INCI)
Contains Daily Wash (CL-01, 250 ml), Deep Moisture Mask (CN-03, 200 ml), Leave-In Milk (CN-04, 150 ml) and Frizz Control Serum (SR-05, 50 ml). Full ingredient lists on each product page.
Size
Four full-size products. 650 ml total.
Net weight
690 g
Texture
See each product.
Made
Formulated and filled in the United States.

How to use

  • CL-01 on the scalp, rinse.
  • CN-03 on squeezed-out hair, five to fifteen minutes, rinse.
  • CN-04 then SR-05 on soaking-wet hair, in sections.
  • Dry without disturbing it. Do not rake through once dry.

Cautions

  • Not for fine or thin hair. At a top weight of 4 this box is the wrong shape for that problem — The Fine Hair Week is the right one.
  • Contains shea butter, coconut oil and hydrolysed rice protein.

Shipping

$4.95 standard, free over $45. 3–5 business days. Full policy

45 DAYS

Returns

Unopened and in original packaging, or opened if it caused a reaction. Refunded within 5 business days of reaching us. Full policy

Questions about this product

hello@northlinehair.comEvery message answered within one business day.

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