SEAL - SEALING OIL
SEAL - SEALING OIL
Seal, powered by nourishing oils
Real people, real results: less breakage
Thrive and Seal: moisture for up to 7 days
How to use Seal
SEAL - SEALING OIL
SEAL - SEALING OIL
Seal signature scent coconut and vanilla
SEAL - SEALING OIL
SEAL - SEALING OIL
Ritual step 7 · Seal

SEAL - SEALING OIL

Sealing hair oil

Shine. Soften. Seal. A blend of nourishing oils that helps lock in moisture, softens hair and adds shine.

  • Helps seal in moisture
  • Helps reduce breakage
  • Cares for dry ends
  • Adds shine
€31,95100 ml
Vegan · Made in Germany · 6 months after opening
Pair it & save
The Scalp Duo
The Scalp DuoCrown + Seal€69,95 €76,90 Save €6,95
The Moisture Duo
The Moisture DuoSeal + Thrive€59,95 €66,90 Save €6,95
The Care Trio
The Care TrioCrown + Seal + Thrive€99,95 €111,85 Save €11,90
How to use

1. To seal in moisture: apply a small amount to damp lengths and ends, ideally after Thrive, to keep moisture in and lengths smooth. Do not rinse.

2. As a pre-wash hair oil: apply to dry lengths and especially the ends. Leave on for 15 to 20 minutes, then wash with shampoo as usual.

3. Shine finisher: smooth a small amount over styled hair.

4. Treatment booster: mix a little into your deep conditioner.

Key ingredients

Avocado oil, castor oil, macadamia nut oil, sweet almond oil, safflower seed oil, jojoba oil, sunflower seed oil.

Full ingredients
Experience the Naya effect

Real hair, real results

How to use

Four ways to use Seal

01

Seal in moisture

Apply a small amount to damp lengths and ends, ideally after Thrive. Do not rinse.

02

Pre-wash treatment

Apply to dry lengths and ends. Leave for 15 to 20 minutes, then wash as usual.

03

Shine finisher

Smooth a small amount over styled hair.

04

Treatment booster

Mix a little into your deep conditioner.

Moisture, locked in

The last step that makes it last

Seal helps lock moisture into the hair and so reduce breakage and dry ends. Enriched with avocado, castor and macadamia nut oil. Use it right after Thrive to keep lengths smooth and moisturised, or as a pre-wash oil before shampooing.

Why you will love it

Helps seal in moisture

Helps reduce breakage

Cares for dry ends

Adds shine

Our nourishing oils

What goes into Seal

Avocado oil
Leaves dry hair soft and smooth. One of the few oils that can penetrate into the hair fibre, not just coat it.
The research  Lab studies using mass spectrometry found avocado oil enters undamaged hair to a moderate depth (around 25 micrometres), second to coconut oil, and reinforces the fibre's water-repelling barrier (Cosmetics, 2022). In textured hair, a 2024 study confirmed avocado oil penetrates, though unevenly, and its effect on hair strength varied with hair type and bleaching.
Castor oil
Helps lock in moisture.
Macadamia oil
Smooths and adds shine.
Almond, safflower, jojoba & sunflower oils
Light, nourishing support oils.

About this research: these studies tested oils on hair fibres in the lab, not Seal itself. Results vary with hair type, porosity and damage.

What's inside?

Every ingredient, in plain English, grouped by what it does for your hair.

What's inside Seal

Oils & butters

Soften, add shine and slow down moisture loss from the strand.
Avocado oilPersea Gratissima Oil
Leaves dry hair soft and smooth.
Sweet almond oilPrunus Amygdalus Dulcis Oil
Light, softening oil that adds slip and shine.
Safflower oilCarthamus Tinctorius Seed Oil
Lightweight oil that softens without feeling heavy.
Castor oilRicinus Communis Seed Oil
Thick oil that helps lock in moisture.
Macadamia nut oilMacadamia Integrifolia Seed Oil
Smooths the hair and adds shine.
Jojoba oilSimmondsia Chinensis Seed Oil
Similar to the scalp's own sebum: balancing and lightly conditioning.
Sunflower seed oilHelianthus Annuus Seed Oil
Light oil rich in vitamin E that softens and smooths.

Essential oils & scent

Give the scent. Some are declared separately because they can be allergens for sensitive people.
FragranceParfum
Gives the signature scent.
Vanilla scentVanillin
The warm vanilla note.
Scent componentBenzaldehyde
Almond-like note in the fragrance.
Scent componentBenzyl Benzoate
Part of the fragrance; declared because it can be an allergen.

Antioxidants & soothers

Protect the oils in the formula.
Vitamin ETocopherol
Antioxidant that protects the oils in the formula.

Preservation & stability

Keep the product safe and fresh for the whole time you use it.
PreservativeBenzyl Alcohol
Helps keep the product free from microbes.
Full INCI list, in label order

Persea Gratissima Oil, Prunus Amygdalus Dulcis Oil, Carthamus Tinctorius Seed Oil, Ricinus Communis Seed Oil, Macadamia Integrifolia Seed Oil, Simmondsia Chinensis Seed Oil, Helianthus Annuus Seed Oil, Parfum, Tocopherol, Vanillin, Benzyl Alcohol, Benzaldehyde, Benzyl Benzoate.

Scent

Coconut & vanilla

Creamy coconut and sweet vanilla. A soft scent that fades gently without a strong lingering fragrance.

Questions about Seal

How do I use Seal?

Open "How to use" next to the product for the four ways to use it.

What is in Seal?

Tap See all ingredients above for every ingredient in plain English, grouped by what it does.

Will I see the same results as in the photos?

Results vary from person to person, depending on hair type, routine and consistency.

A note from Best

From our founder

Thank you for entrusting me with your hair, my love.