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

Everything

The whole catalog

23 products, each with a weight rating from 0 to 5, the full ingredient list, the strength of the key ingredient, the fill size and net weight, how often to use it and who it is not for.

Filter by weight first. If you already know your ceiling — 2 for fine hair, 3 for medium, 4 for thick, 5 for curly — it is the fastest way to see only what will actually work on your hair.

All prices are shown and charged in US Dollars (USD).

Weight
Step
Made with

23 products

CL-01Weight 0

Daily Wash

Sulphate-free, colour-safe, unscented

$22.00

CL-03Weight 0

Clarifying Wash

Once a month, and we mean once

$22.00

CN-01Weight 0

Daily Conditioner

Slip, and then nothing left behind

$22.00

CL-02Weight 0

Bond Repair Wash

The bond complex, in the step you never skip

$24.00

SC-01Weight 0

Scalp Exfoliant

Lifts flaking and build-up. Nothing more than that

$28.00

ST-01Weight 1

Heat Shield Spray

Rated to 450°F, and light enough to use every day

$26.00

SR-01Weight 1

Weightless Smoothing Serum

The one fine hair can actually wear

$28.00

SR-07Weight 1

Colour Guard UV Serum

Slows how fast the sun takes your colour out

$30.00

SC-02Weight 1

Scalp Comfort Serum

For the tight feeling after a hard wash

$30.00

SR-04Weight 1

Bond Repair Serum

For hair that has been bleached, coloured or over-heated

$36.00

RT-01Routine · tops out at 1

The Fine Hair Week

Everything at weight 1 or under. Nothing that can flatten you

$84.00

ST-02Weight 2

Texture Spray

Grip and volume without the crunch

$24.00

CN-04Weight 2

Leave-In Milk

Detangles, and stops there

$26.00

SR-02Weight 2

Glass Shine Serum

Mirror finish, and the build-up that comes with it

$30.00

Low stock
SR-08Weight 2

Protein Strength Serum

Firmer-feeling hair, and a clear warning about overdoing it

$32.00

CN-02Weight 2

Bond Repair Mask

Ten minutes, once a week, on hair that has had a hard year

$34.00

RT-02Routine · tops out at 2

The Repair Week

The bond complex in all three steps it belongs in

$86.00

ST-03Weight 3

Styling Cream

Light hold, no shine, no residue at the root

$26.00

SR-03Weight 3

Squalane Hair Oil

One oil, olive-derived, nothing else added

$32.00

SR-05Weight 4

Frizz Control Serum

Built for humidity, and heavy enough to survive it

$30.00

CN-03Weight 4

Deep Moisture Mask

The heavy end of the conditioning range

$34.00

RT-03Routine · tops out at 4

The Curl Week

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

$92.00

SR-06Weight 5

Overnight Repair Oil

The heaviest thing we make, and it washes out in the morning

$34.00