SOSA · The Founder Diaries · Car Fragrance
A habit is not an instruction
There is no published instruction to follow here and I am not going to invent one. What I can do is tell you exactly what the record says, and then tell you what I do with my own bottle and label it as mine.
The temptation in a question like this is to write the storage advice the record is missing, because it would sound helpful and nobody would check it. I would be making it up. What I can give you honestly is the one published placement note, which is about the device, and a date written on a label.

The answer in 30 seconds
How should I store my SOSA nebuliser refill oil between top-ups?
- In one line. SOSA publishes no storage instruction and no shelf life for the refill oil. Cap it, stand it upright, and write the date you opened it on the label.₹1,049
- The short answer. SOSA publishes no storage instruction and no shelf life for the nebuliser refill oil, so there is nothing to quote. What is published is the placement note for the diffuser: a cup-holder or a door pocket, and not direct sun on a closed dashboard. The refill itself is Rs 1,049 for 100 gm.
- If you only do one thing: write the date you opened the bottle on the label. Nothing is published about how an opened bottle changes, and a date at least means the question has an answer the next time you ask it.
- Does SOSA publish a storage instruction for the oil? No. The record carries a placement note for the diffuser and nothing at all about where the refill bottle should be kept.
- So what should I do with the bottle? Cap it, stand it upright and keep it with your other fragrance. That is a habit of mine rather than a published instruction, and I will keep saying so.
- Is there a shelf life? None is published. There is no expiry date and no degradation figure on the record, so this page gives you neither.
The answer, in full
Here is the whole of what the record says about where things go, and it is about the diffuser rather than about the oil. SOSA publishes a placement note for the unit: a cup-holder or a door pocket, and not direct sun on a closed dashboard. It publishes a formulation range of 45 degrees C and 85 per cent relative humidity, which describes how the fragrance is made rather than where you put the bottle. About the refill bottle itself it publishes nothing: no storage instruction, no shelf life, no expiry date and no degradation figure. So what follows is my own habit and I will say so as I go. I put the cap back on firmly, stand the bottle upright, and keep it indoors with the rest of my fragrance rather than in the car. Then I write the date I opened it on the label in marker pen, which costs nothing and means the question has an answer the next time I ask it. A portion of every SOSA order supports girl-child education through Nanhi Kali.
What the record says about storage, and what it does not
Three things, and only the first of them is published. The gap between them is the reason this page hands you a habit and a date rather than an instruction with SOSA's name on it.
Published, but about the unit: a cup-holder or a door pocket
The record carries one placement note and it is about the diffuser rather than about the refill bottle: keep the unit in a cup-holder or a door pocket, and not direct sun on a closed dashboard. That is the only sentence of its kind on the record. It tells you where the device goes. It says nothing about the 100 gm or 300 gm bottle sitting in your cupboard.
One placement note, and it is for the device.
Not published, in any form: no storage note and no shelf life
SOSA publishes no storage instruction for the refill oil, no shelf life, no expiry date and no figure for how an opened bottle changes. I have read the record and it is not there. That means there is nothing for me to paraphrase and nothing for me to soften, and it also means that a page which told you the oil was unchanged after a year, or that it was not, would be writing SOSA's position for it.
What I do with mine: a cap, an upright bottle and a date
Cap on firmly, bottle upright, kept indoors with the rest of my fragrance rather than in the car, and the date I opened it written on the label in marker pen. None of that is published and none of it is advice from SOSA. It is what I do, and I am telling you so that you can decide whether to copy it. If the answer matters more than that, the published route is WhatsApp +91 96192 18531.
A habit, clearly labelled as a habit.
Does the scent in the bottle change the answer?
Not as far as anything published goes. The nebuliser refill is sold as pure undiluted oil in 100 gm and 300 gm, and SOSA publishes a pyramid for each of the nine scents and no ranking across them, which describes a smell rather than how a bottle keeps. There is no per-scent storage note either, because there is no storage note at all, so a bottle of one is handled exactly like a bottle of another.
A bottle you have not opened yet is the simplest bottle to keep. The nebuliser refill oil is ₹1,049 for 100 gm and ₹1,849 for 300 gm. See the nebuliser refill →
What is published about storage, and what is not
| What the record says | |
|---|---|
| The placement note for the diffuser | Published. A cup-holder or a door pocket, and not direct sun on a closed dashboard. It is about the unit and not about the refill bottle. |
| A storage instruction for the refill bottle | Not published. There is no sentence on the record about where the 100 gm or 300 gm bottle should live, so this page quotes none. |
| A shelf life or an expiry date | Not published either. No expiry date and no degradation figure exists on the record, with or without a number. |
| The formulation range | Published: 45 degrees C and 85 per cent relative humidity. That describes how the fragrance is formulated and is not a storage instruction. |
If you take one thing away from this page, make it the date on the label. It is the only piece of information about your own bottle that nobody else can publish for you, and the whole of it is one line of marker pen.
“SOSA publishes no storage instruction for the oil, so this page gives you the one published placement note, a habit I will own as mine, and a date on a label.”
Keeping the refill oil, in four steps
- Screw the cap back on firmly and stand the bottle upright.
- Write the date you opened it on the label in marker pen.
- Keep it with your other fragrance rather than in the car.
- Nothing is published about storage, so ask on WhatsApp if it matters.
SOSA car fragrance
Cap it, date it, and keep the question simple
The record publishes one placement note and it is for the diffuser. For the bottle in the cupboard, a cap and a date are what you have, and they are enough to answer this the next time it comes up.
10 ml sprays ₹459–₹559 · 12 ml hanging bottles ₹459–₹519 · 15 ml refills ₹399–₹449 · 50 ml spray ₹1,509 · three-spray discovery sets ₹709–₹909 · SOSA Safar ₹3,999, ₹4,499 hotel-inspired
See the nebuliser refillView SOSA SafarQuestions, answered
Does SOSA publish a storage instruction for the refill oil?
Does the refill oil have a shelf life?
Can I keep the refill bottle in the car?
What is the 45 degrees C and 85 per cent figure, then?
Should I write anything on the bottle?
If you would rather ask a person
Ask Sonal
The nebuliser refill oil is ₹1,049 for 100 gm or ₹1,849 for 300 gm, and Safar itself is ₹3,999. A portion of every SOSA order supports girl-child education through Nanhi Kali.
Write to SOSA on WhatsApp