Hair oil is easy to overdo. One pump too many and your lengths look greasy rather than glossy. REHAB., a female-founded haircare brand, solves this by putting its oils into single-use capsules. Each capsule holds one measured dose, and the empty capsule dissolves in hot water.
What started as a single oil has grown into a family of six Dose formulas, each designed for a different job. They all cost the same, so the real question is which one suits your hair. This guide compares them side by side.
Visit the Official REHAB. Site
In this guide
- The Dose Range at a Glance
- Dose 1.0: The Original All-Rounder
- Dose 1.1: For Fine or Short Hair
- Dose 1.2: For Curly and Coily Hair
- Dose 2.0: The High-Shine Finish
- Dose 3.0: The Overnight Treatment
- Dose 0: Pre-Wash Scalp Oil
- Building a Simple Oiling Routine
- Delivery and Offers
- Conclusion
- Frequently Asked Questions
The Dose Range at a Glance
All six oils below cost 26 pounds per bottle on the REHAB. website at the time of writing. Details are taken from the official product pages.
| Oil | Best for | When to use | Key ingredients |
|---|---|---|---|
| Dose 0 Matcha Scalp | Fine or thinning hair, scalp care | Before washing, 1-2 times a week | Matcha, rosemary oil, castor oil |
| Dose 1.0 | All hair types, everyday repair | Daily, on damp or dry ends | Argan, jojoba, aloe vera oil, vitamins A, C, E, B5 |
| Dose 1.1 Fine Hair | Fine, short or greasy-prone hair | Damp hair, then style | Macadamia, camellia, sweet almond oil |
| Dose 1.2 Curly | Curly and coily hair, frizz | Wet or dry, and to refresh curls | 8 oils incl. avocado, castor, argan, plus shea butter |
| Dose 2.0 High Shine | All hair types, dull hair | Dry hair, after styling | Grapeseed, argan, squalane, glycerin |
| Dose 3.0 Sleep Serum | Dry, tired hair | At night, 1-2 nights a week | Niacinamide, hyaluronic acid, plant proteins |
Compare all Dose hair oils at REHAB.
Dose 1.0: The Original All-Rounder
Dose 1.0 is the award-winning original. Each bottle holds 30 capsules of a blend of Moroccan oil, jojoba oil and aloe vera oil with vitamins A, C, E and B5. REHAB. says it contains ten times more vitamins than standard hair oil. It is suitable for all hair types and designed for daily use. Tear open a capsule, smooth the oil through the ends, ideally on slightly damp hair, and style as usual without rinsing.
Dose 1.1: For Fine or Short Hair
If regular oils leave your hair flat, Dose 1.1 is the lighter option. It has a dry-touch texture and a blend of macadamia, camellia and sweet almond oils with vitamin E. It is made for fine, short or greasy-prone hair that needs softness and sheen without losing volume. It has a fresh sweet almond scent and is applied in the same way as Dose 1.0.
Dose 1.2: For Curly and Coily Hair
Dose 1.2 is the richest formula in the range, with eight oils including avocado, sunflower, castor and argan, plus vitamin E and shea butter. It is designed to lock in moisture, calm frizz and define curls. Because it can be used on wet or dry hair, it also works for refreshing curls between wash days.
Dose 2.0: The High-Shine Finish
Dose 2.0 is a finishing oil rather than a treatment. Grapeseed oil, argan oil, squalane and glycerin give a glossy finish, and REHAB. says it helps shield styles from heat and humidity. Apply it to dry hair after styling, focusing on the mid-lengths, ends and any flyaways. It suits all hair types and has a floral and vetiver scent.
Dose 3.0: The Overnight Treatment
Dose 3.0 works while you sleep. It combines oils with niacinamide, hyaluronic acid and plant-based proteins to hydrate and soften dry, tired hair. Apply it to the lengths and ends before bed, ideally the night before wash day. REHAB. recommends using it one or two nights a week, with hair tied in a protective style. It has a relaxing lavender scent.
Dose 0: Pre-Wash Scalp Oil
Dose 0 is the first step in an oiling routine and is applied to the scalp, not the ends. It blends matcha, rosemary oil and castor oil and is aimed especially at fine and thinning hair. Apply it to dry hair before washing, massage for three to five minutes and leave it for up to four hours before shampooing. In a 12-week independent user trial with 30 participants, 93% agreed their hair felt stronger. REHAB. also sells a matching Oiling Comb for 16 pounds, and the Dose 0 and Oiling Comb bundle was 33.60 pounds at the time of writing. See the Dose 0 bundle.
Building a Simple Oiling Routine
- Wash day: use Dose 0 on the scalp before shampooing.
- After washing: use Dose 1.0, 1.1 or 1.2 on damp lengths, depending on your hair type.
- After styling: finish with Dose 2.0 for extra shine.
- Once or twice a week: use Dose 3.0 overnight for a deeper treatment.
You do not need all six. Most people do well with one leave-in oil that suits their hair type, then add a scalp oil or overnight serum if needed.
Delivery and Offers
REHAB. offers free UK delivery on orders over 40 pounds, so two Dose bottles together qualify. The site also advertises a Dose Delivery subscription with 30% off and a free gift. Check the current terms on the website before ordering. See current offers at REHAB..
Conclusion
Choose Dose 1.0 if you want one oil for everything, Dose 1.1 for fine hair and Dose 1.2 for curls. Add Dose 2.0 for a glossy finish, Dose 3.0 for an overnight treatment and Dose 0 for scalp care. The capsules make each dose consistent, so your hair is less likely to end up greasy. When you are ready, choose your Dose at REHAB..
Frequently Asked Questions
Are REHAB. Dose capsules biodegradable?
Yes. REHAB. says the empty capsules are biodegradable and dissolve in hot water.
How many capsules are in a bottle?
Dose 1.0 contains 30 capsules, and Dose 1.1 and 1.2 also come in bottles of 30.
Which Dose oil is best for fine hair?
Dose 1.1 is designed for fine, short or greasy-prone hair. Dose 0 is a pre-wash scalp oil aimed at fine and thinning hair.
Can I use Dose 3.0 every night?
REHAB. recommends using it one or two nights a week for best results.
