REJUVENIQE or REJUVENIQE Light: which oil suits your hair?
9 min read Ingredients Updated 5 October 2026 By Anna Sophie Schulenburg
Whether you choose REJUVENIQE® or REJUVENIQE® Light depends on the thickness of each individual hair. Fine hair that falls flat quickly takes Light; medium to coarse, dry or curly hair takes the richer original. Light isn't sold in every country, so check your country's MONAT shop first, and if it isn't there, start with a single drop of the original on the ends only. You can tell whether the choice suits you on the evening after the first application: the ends lie smooth, the roots still have lift, and no strands stick together.
In the German shop the original is simply called REJUVENIQE®, while in the UK MONAT lists it as REJUVENIQE® Oil Intensive. Both names mean the same oil.
Many people choose by how dry their ends are and automatically reach for the richer oil when the lengths feel like straw. That only works if each hair can carry the film of oil. Fine hair turns stringy under the original quickly, even when the ends are very dry. With Light, half a drop too much shows less.
For what's in the original and how to use it on your face and body as well, see what REJUVENIQE® contains and how to use it. This page is only about choosing between the two versions and how much of each to use.
REJUVENIQE vs REJUVENIQE Light: the difference
| REJUVENIQE® (original) | REJUVENIQE® Light | |
|---|---|---|
| Hair thickness | medium to coarse | fine to medium |
| Feel in the hair | richer, leaves a denser film around the lengths | lighter, weighs hair down less |
| Typical use | pre-wash treatment, finish on dry ends, curls in towel-dried hair | daily finish on the ends and top layer |
| Finish for shoulder-length hair | 2 to 3 drops | 1 to 2 drops |
| Pre-wash treatment | yes, it's the first choice for that | possible, usually too light for thick, very dry lengths |
| Scent | contains essential oils and fragrance | check the ingredient list on the label |
| Availability | standard range | not in every country |
| Sign you used too much | ends darker than the rest, stuck together in strands | roots lie flat by the evening |
| Not suited to | fine hair as a daily finish in larger amounts | very dry, thick hair as the only oil |
Both leave a thin film over the surface of the hair. The cuticle lies flatter as a result, the comb glides through the lengths more easily, and the ends shine more. Neither oil replaces a heat protectant. Before the hairdryer or straighteners your hair needs a separate product, so work out what temperature calls for heat protection before you add the oil to your styling routine.
Which REJUVENIQE suits my hair? The single-hair test
Hair thickness means the diameter of one hair. How many hairs you have is a separate question. A lot of fine hair looks dense and still gets weighed down by the original as fast as a little fine hair.
Take a shed hair from your brush and roll it between thumb and forefinger. If you can barely feel it, it's fine. If you feel a thin thread, it's medium. If it feels almost like wire, it's coarse. Then check the rows in the table.
| What you notice | Points to |
|---|---|
| You can barely feel a single hair between your fingers | Light |
| Even two drops of a hair oil make the ends stringy | Light |
| The roots get greasy on day two, yet the ends are still dry | Light, ends only |
| A single hair feels almost wiry | Original |
| The lengths are bleached or coloured and still feel rough after conditioner | Original |
| Thick curls air-dry and then stick out | Original |
| You mainly want the oil as a pre-wash treatment | Original |
Do rows for both Light and the original apply to you? The free hair analysis asks about thickness, lengths and scalp separately and suggests care that fits.
Decide in five questions
Work through the questions in order and stop at the first yes.
- Is Light missing from your country's shop? Then take the original and start with one drop as a finish, even on fine hair.
- Do you mainly want the oil as a pre-wash treatment? Then the original, because it's washed out afterwards and its weight makes no difference to your finished hair.
- Is each hair fine? Then Light, even if the ends feel very dry.
- Is it coarse, curly or bleached? Then the original.
- Somewhere in between? Then start with Light as a finish and check after four weeks. If the ends still feel rough in the evening while the roots hold up well, switch to the original.
The original, Light or neither
The original is your oil if your hair is medium to coarse, the lengths stay rough after washing, or bleach, colour and heat have left their mark. Curly hair that air-dries can also take it in towel-dried hair, two to three drops for shoulder-length curls. For the pre-wash treatment it's the first choice anyway, since anything too rich at that stage goes down the drain with the shampoo.
Light is your oil if your hair is fine, loses lift quickly and you want to put a drop on the ends every day. The same goes if the original used to feel too heavy even though you kept the amount small. If your roots also get greasy quickly, choose the shampoo for your scalp and the oil for your ends, as described for oily roots with dry ends.
You need neither if your hair feels soft and combs through without tugging. An oil is an extra step your routine can do without. If your fine hair mainly lacks body, even Light tends to make it flatter, and you'll get further with light care and the right blow-drying technique, as with volume for fine hair. If your scalp itches or flakes, no oil on the lengths will help; first find out whether it's a dry scalp or dandruff. If you have a known fragrance allergy, skip the original, since it contains essential oils and fragrance; with Light, the ingredient list decides.
How many drops: amount and application by hair length
The table applies to medium hair. With fine hair use one drop less of the original, with thick or curly hair one more.
| Hair length | Light as a finish | Original as a finish | Original as a pre-wash treatment |
|---|---|---|---|
| Chin length | 1 drop | 1 to 2 drops | 3 to 4 drops |
| Shoulder length | 1 to 2 drops | 2 to 3 drops | 4 to 6 drops |
| Chest length | 2 drops | 3 drops | 6 to 8 drops |
| Longer | 2 to 3 drops | 3 to 4 drops | 8 to 10 drops |
As a finish you work both oils in the same way, into dry or towel-dried hair after the leave-in, meaning the conditioner that stays in your hair and isn't rinsed out.
Step 1 — Count and spread. Put the drops in one palm and rub your hands together until both shine evenly and you can't see a drop any more.
Step 2 — From the ends upwards. Take the ends between your hands, press them together and work your way up to about chin height with the same movement. Leave the roots out.
Step 3 — The rest over the top layer. Smooth whatever is left on your hands flat over the surface. Stray hairs settle that way without the roots getting any oil.
For the treatment, apply the original to dry hair in four sections so the underside gets some too. Leave it on for 15 minutes, or for 30 minutes under a warm towel if your lengths are very dry. To wash it out, put the shampoo onto the still oily hair first, massage it in and only then add water. Once a week is enough for dry hair, every two weeks for normal hair. The technique for all three moments, before washing, in damp hair and in dry hair, is in how to use hair oil properly.
The most common mistakes, each with its fix:
- The original every day, three drops on fine hair → Light, or a single drop of the original on the ends only.
- Oil dripped from the bottle straight onto a strand → rub it between your palms first until no drop is visible.
- Oil on parched lengths without conditioner and leave-in → conditioner and leave-in first, then oil. Oil brings no water into the hair; it only sits on top.
- Light as a treatment for thick, bleached lengths → the original, 30 minutes under a warm towel.
- Back over all the lengths on day two → top up on the ends only, or the oil builds up from one day to the next.
Combining REJUVENIQE and Light
Using both oils pays off when your hair sets two tasks: lengths that can take a rich treatment, and roots that show every gram of oil in the finished hair. In that case the original goes where it gets washed out again, and Light goes where it stays in.
| Your situation | REJUVENIQE® (original) | REJUVENIQE® Light |
|---|---|---|
| Fine, bleached hair with straw-like ends | once a week as a treatment, 15 minutes | 1 drop a day on the ends |
| Medium hair, rough in winter, flat in summer | as a finish during the heating season | as a finish from spring to autumn |
| Oily roots, dry ends | as a treatment on the bottom ten centimetres only | as a finish on the ends only |
Still, start with one oil: the one your test pointed to. Stick with it for four weeks and only add the second if you find yourself missing a use. Otherwise you won't know which oil made which difference.
You can tell whether the amount is right on the evening of the first day. Whether the version is right only shows after four weeks of rain, central heating and styling. Take a photo of your roots and ends on the first evening and compare it after four weeks in the same light: if the ends lie calmer without the roots going flat any sooner, your choice fits.
Quick questions
Is REJUVENIQE Light suitable for curly hair?
Yes, for fine waves. The original weighs them down quickly and they drop. Thick, coily curls do better with the original in towel-dried hair, two to three drops for shoulder-length hair.
Can I mix REJUVENIQE into my conditioner or mask?
Yes. One to two drops per portion make the mask richer, and the oil rinses out with it. For fine hair, one drop of Light is enough.
Can I leave REJUVENIQE in overnight?
Yes, as a treatment that works, though you don't need to. Fifteen minutes before washing is enough. If you do leave it in overnight, put a towel over your pillow and shampoo twice in the morning.
Does REJUVENIQE help with hair loss or split ends?
No. Split ends can only be cut off; the oil smooths them so they're less visible. If your hair falls out suddenly, in clumps or in round patches, see a dermatologist, because iron deficiency, hormones or a skin condition can be behind it.
If you're unsure whether your hair is more fine or coarse, the free hair analysis asks about your hair thickness and the state of your ends and suggests care to match.