Rezenn Academy

A buyer was convinced something was “missing” after transferring their material 🤯

They bought 3g, used a pipette carefully — then weighed 2.85g. “Where did it go?”

We call it skin loss: the thin film of material that clings to bottles, pipettes and droppers. Even in a professional lab, 100% recovery isn’t possible.

At 1–3g that film is a larger percentage of your total; at bigger volumes it becomes a smaller percentage.

9:42 AM

Rezenn Academy

Imagine buying fragrance oil (Pati) for your perfume business.

A: RM400/kg, needs 50% concentration and still doesn’t last — so you add 10% fixative at RM500/kg.

B: RM300/kg, performs at only 25%, no fixative needed.

Which one is actually more expensive?

11:35 AM

Q1 · Do you face scenario A now?Select one

Yes12

No9

Not sure20

11:35 AM

Rezenn Academy

A question from our Olfactory Intelligence class:

“If a perfume is never opened, why does it still expire?”

A sealed bottle slows deterioration — it doesn’t stop it. Here’s why ⬇️

10:17 AM

A factory seal only slows degradation; it doesn’t stop it.

Oxygen is trapped during bottlingResidual air starts oxidising fragrance molecules from the moment it’s sealed.

Heat and UV cause breakdownTemperature changes and light alter aromatic compounds over time.

Fragrance market, by year

201920252030

Source: McKinsey & Company

Rezenn Academy

✨ Fragrance is reshaping the beauty industry. Are you ready?

Fragrance is the fourth-largest beauty category worldwide — and by 2030 it is forecast to overtake colour cosmetics and become the third-largest. 🌸

So, where are you in this evolving fragrance landscape?

8:30 PM

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