CCTV Exposé: Just a Few Cents, Fragrance Mixed with Water? Your "Pure Botanical" Mosquito Repellent May Hide Pesticides!

2026-06-04 · CATO · CATO Standards

In the sweltering summer, besides the heat, the most annoying thing is the ubiquitous mosquitoes. To ward off mosquitoes, all kinds of "viral" mosquito-repellent sprays and repellent liquids have become summer essentials. But are the "pure botanical extracts," "safe for pregnant women and infants," and "chemical-free" repellent products you paid a premium for really safe? Recently, CCTV's "Financial Investigation" exposed a batch of inferior mosquito-repellent products, uncovering the shocking secrets behind the industry!

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⚠️ CCTV Exposé: "Cosmetics" Hiding Pesticides — "Pure Botanical" Is Just Fragrance Mixed with Water!

According to CCTV's recent undercover report, many mosquito-repellent products on the market marketed as "pure botanical, mild and non-toxic" are in fact involved in serious violations and fraud:


1. Bait-and-switch: Many products are in fact registered as cosmetics (under the "cosmetics registration" category) or under corporate standards, yet aggressively advertise strong mosquito-repellent effects. To achieve actual efficacy, manufacturers secretly add pesticide ingredients such as "IR3535". This perfectly bypasses the stringent approval, toxicity testing, and warning-label requirements for pesticide products, posing major safety hazards to pregnant women, infants and young children.


2. Unscrupulous fraud: Even worse, some mosquito-repellent liquids marketed as "herbal extracts" actually cost only a few cents to produce, made simply by diluting cheap fragrance with water, with no mosquito-repellent effect whatsoever — purely deceiving consumers.


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Science Time: What Are the Truly Effective Mosquito-Repellent Ingredients?

The internationally recognized safe and effective mosquito-repellent ingredients are mainly the following:


DEET: The most potent and widely used, but may irritate the skin at high concentrations.


Picaridin: Mild and non-irritating, suitable for children.


IR3535 (BAAPE): Lower toxicity, but falls under the pesticide category and must be strictly controlled in dosage and properly labeled.


Oil of Lemon Eucalyptus Extract (PMD): The only widely recognized plant-derived effective mosquito-repellent ingredient.


In China,compliant mosquito-repellent products must obtain a "pesticide registration number"and clearly label the active ingredients and their concentrations! Adding them secretly without labeling is not only illegal, but also irresponsible to consumer health.


Strict Quality Control: CATO Reference Standards Safeguard Accurate Testing

With rampant irregularities in mosquito-repellent products, market sampling by regulators and internal quality control by compliant manufacturers are especially important.


For the quality control and compliance testing of mosquito-repellent products, CATO offers the following three core reference standard categories:


① Reference Standards for Active Repellent Ingredients

We provide high-purity reference standards for DEET (including the isotope-labeled internal standard DEET-D10), IR3535 (BAAPE), Picaridin, and PMD (lemon eucalyptus oil extract) and other repellent agents, helping laboratories perform accurate quantitative analysis and ensure product ingredients meet specifications.

💡 Among them, the DEET-D10 isotope-labeled internal standard (Cat. No. CCPD103176) is specially designed for high-precision GC-MS/MS quantification, and is the standard configuration for third-party institutions to issue legally valid test reports.


② Reference Standards for Plant Essential Oils and Fragrance Ingredients

We provide reference standards for plant extracts and flavor ingredients such as citronellol (β-Citronellol), menthol (L/DL-Menthol), linalool, and eugenol, used to identify the true composition of "pure botanical" products and expose the lie of inferior fragrance diluted with water.


③ Reference Standards for Prohibited and Restricted Additives

We provide reference standards for various hidden pesticides, heavy metals, preservatives, and other illegally added substances in cosmetics and daily chemical products, helping enterprises screen potential risks and uphold the safety bottom line for mothers, infants, and sensitive populations.


Quick Reference for Some In-Stock Products

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For more product specifications and solution preparation versions, please visit our official website or contact customer service.www.cato-chem.com

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