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Lily Tse on the TechTO stage

Lily Tse

Founder & CEO, Think Dirty

Consumer appTorontoOn TechTO stages since 2017

Lily Tse is the founder and CEO of Think Dirty, the Toronto app that scans beauty and personal care products and rates their ingredients. She started it in 2013 after her mother's cancer diagnosis pushed her to question beauty labels. Before that she spent 13 years as an advertising art director. She spoke at TechTO in 2017 and 2018.

On the TechTO stage ×2

First seen on the TechTO stage in 2017. Every talk is searchable — ask the archive about Lily

In their words

I started my app five years ago because I find there's really a lack of transparency in beauty product labeling. Think Dirty basically helps you scan a product and learn about the ingredients really quickly, and shop for a better option for your health and the environment.

TechTO MarketingTO, Aug 2018 · watch at 6:07

Why is purpose important? Because founding a startup is really hard. This is the roller coaster — at some point you might need to be reminded why you want to start your company. That's exactly the point, that crisis meaning: you will need your purpose.

TechTO, Apr 2017 · watch at 1:34

There's no legal definition of what natural means. A lot of companies can claim they're natural — so the challenge is really to read and understand ingredients. That's exactly what our app is doing.

TechTO, Apr 2017 · watch at 8:45
A few quotes can’t cover everything Lily said on the TechTO stage. 1,600+ talks are searchable.Ask about Lily

Around the web ×3

Quick answers

Who is Lily Tse?

The founder and CEO of Think Dirty, a Toronto app that scans beauty and personal care products and rates their ingredients. She founded it in 2013 and still runs it.

Why did Lily Tse start Think Dirty?

Her mother had cancer, which sent her digging into what was in beauty products. As she put it on the TechTO stage in 2017, the greenwashing she found is what got her angry enough to start a business.

What did Lily Tse do before Think Dirty?

Thirteen years as an advertising art director, starting in the e-commerce department at MoMA in New York and later at agencies including Sid Lee, TAXI and TBWA\Chiat\Day.

How many times has Lily Tse spoken at TechTO?

Twice — 'Scandal Proof Your Corporate Culture' at TechTO in April 2017, and 'The Rise of Indie Brands with Cult Following' at MarketingTO in August 2018.

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Maintained by TechTO · facts sourced and dated · last reviewed Aug 28, 2026