You know your formula. Base VG and PG, nicotine at the right strength, flavor at the right percentage. It tastes the way it should. Consumers like it. It sells.
But if someone asked you to name the specific chemical compounds inside that flavor concentrate, and confirm whether each one is permitted under international regulatory standards, could you answer?
Most manufacturers cannot. Not because they are careless, but because that information was never given to them.
Flavor Is Not One Ingredient. It Is Dozens.
This is the part that surprises many people outside of flavor chemistry. When you add a flavor concentrate to your base, you are not adding a single substance. You are adding a complex mixture that can contain anywhere from a dozen to several hundred individual chemical compounds, each present at a specific concentration, each with its own regulatory history.
Some of those compounds are simple fruit esters (entirely safe, well-studied, and permitted everywhere). Others sit in more complicated territory. A handful may carry classifications that would prevent your finished product from entering certain markets entirely, regardless of how good it tastes and regardless of how small the concentration is in your final bottle.
These compounds are not necessarily dangerous to your consumers at the levels found in a finished e-liquid. The question is whether your flavor formula contains compounds that are prohibited. If it does, the product cannot enter that market.
CMR
CMR stands for Carcinogenic, Mutagenic, or Reprotoxic. It is the classification system used by the European Chemicals Agency to identify substances that may cause cancer, genetic damage, or harm to reproductive health.
The classification runs in two categories. Category 1 means the substance is confirmed harmful in humans. Category 2 means it is suspected harmful based on strong scientific evidence.
Under EU REACH regulations and IFRA guidelines for flavor formulation, CMR Category 2 substances are not permitted in food-grade or inhalation-grade flavor compounds. Not permitted at low concentrations. Not permitted at trace levels. Not permitted at all.
This matters for Indonesian producers for a reason that goes beyond Europe. As ASEAN regulatory frameworks continue to develop and harmonize with global standards, the CMR classification system is increasingly being adopted as the reference point for what is and is not acceptable. What is outside the scope of Indonesian regulation today has a documented tendency to come within scope within a few years.
What Has Been Found in the Indonesian Market
GC-MS testing (gas chromatography–mass spectrometry), the analytical method that separates a flavor mixture into every individual compound it contains, has been conducted on flavor samples circulating in the Indonesian market, including products commonly used in the Bandung and West Java production clusters.
The findings are worth understanding in detail.
Diphenyl oxide and rose oxide have both been classified as CMR Category 2 reprotoxic substances. Under EU REACH and IFRA standards, neither is permitted in food-grade flavor formulation at any concentration. In testing of Indonesian market samples, diphenyl oxide has been detected at concentrations ranging from 0.2% to 0.6% within the flavor concentrate itself. This is not a trace amount. It is a measurable presence of a compound that is categorically prohibited in regulated markets.
Heliotropine, also known as piperonal, is a widely used aroma compound with a sweet, floral, slightly spicy character that appears frequently in dessert and tobacco flavor profiles. It sits on the IFRA restricted list and faces increasing regulatory pressure in European markets. International buyers sourcing from the region are increasingly requiring confirmed zero inclusion of this compound as a condition of purchase.
Methyl salicylate carries a specific restriction in the EU for products accessible to consumers under 18 years of age. For any producer with ambitions in international retail, its presence requires documented justification and in many contexts is simply not acceptable regardless of the documentation provided.
The appearance of these examples and other compounds in Indonesian market samples is not isolated. It reflects a broader pattern that arises when flavor supply chains prioritize cost and sensory performance without systematic regulatory screening, which describes the majority of flavor supply in this market today.
Why Your Product Selling Well Is Not the Whole Answer
The most common response to this information is a reasonable one: my product is selling, my consumers are happy, and I have had no complaints. Why does this matter?
It matters for two main reasons.
The first is regulatory access. Export markets do not evaluate whether your finished product causes harm to consumers. They evaluate whether your formula contains prohibited compounds. A product with excellent taste, strong consumer reviews, and years of domestic sales history will be turned away at the border of a regulated market if the flavor formula contains a banned substance. The documentation gap that exists in most of the Indonesian market today is a direct barrier to export growth, and that barrier is becoming more consequential as the industry matures.
The second is trajectory. Regulations move in one direction. The compounds being screened out of EU and UK markets today will increasingly come under scrutiny in ASEAN markets over the next three to five years. Manufacturers who identify and address these issues now are managing a planned transition. Manufacturers who discover them later are managing a production disruption, often at a point when they have significant inventory, active customer commitments, and no time to reformulate carefully.
The Simple Question That Reveals a Great Deal
You do not need laboratory equipment to take a first step. You need one question to ask your current flavor supplier:
Can you provide a technical datasheet showing the full chemical compound composition of this flavor, including the regulatory status of each compound under EU REACH and IFRA standards?
A supplier with properly screened, compliant flavor formulations will have this document. It will list every compound present, the concentration at which it appears, and its classification under the relevant international frameworks.
If the response you receive is a general assurance that the product is safe, a statement that all ingredients are food-grade, or simply silence and delay, that response is itself meaningful information. It tells you that systematic regulatory screening has not been part of how that flavor was developed or sold to you.
What Verified Compliance Actually Looks Like
Producers who have moved toward verified compliance work differently from those who have not. Their flavor suppliers provide full compound-level documentation. Their formulations have been screened against CMR classifications, IFRA restriction lists, and the specific prohibited substance schedules of their target export markets. When a buyer in Australia, the UK, or Europe asks for regulatory documentation, they can provide it.
This is not a theoretical advantage. As large domestic retailers and international distributors increase their presence in the Indonesian market, documentation requirements that were once only relevant for export are beginning to appear as conditions of domestic trade as well.
The foundation of that position is knowing, at the compound level, what is in your flavor. Not assuming it is fine. Knowing.
A Practical Starting Point
For producers who want to understand their current position, GC-MS analysis of your existing flavor concentrates is the most direct route to an honest answer. A full analysis will identify every compound present in your formula, map each one against its regulatory classification, and give you a clear picture of where you stand relative to the markets you are targeting or planning to target.
We work with an R&D laboratory that conducts this analysis and produces a full regulatory report covering EU REACH, IFRA, and key export market requirements. If you are a producer in Indonesia who wants to understand what is actually in your current flavors before someone else asks you that question, we are happy to arrange that analysis and walk you through the results.
The industry is growing. The markets available to Indonesian producers are expanding. The producers who move into that growth with documentation behind them are in a fundamentally stronger position than those who move into it hoping the question never comes up.
The question will come up. The time to find the answer is now, while you still have the option to choose how you respond to it.
