"I knew there would be some controversy," Ms LeBlanc said.
"The main reason people seemed to think it was wrong was because it was harmful or dangerous for her.
"I did a decent amount of research before I decided to go ahead and do it and it's completely safe.
"So I think most of those people would change their opinion if they knew the facts."
Ms Leblanc said her daughter Felicity had been "begging" her for pink hair for a long time.
"It's a topical dye and doesn't even absorb into the hair cuticle," Ms LeBlanc explained.
"That's why it washes out so quickly. The ingredients are not harmful either.
"There is probably more dangerous ingredients in lotions, makeup, and food that people use everyday and don't even think twice about it."
This isn't the first time Ms LeBlanc has dyed her daughter's hair. In May, she coloured Felicity's hair blue to match her own.
"It's by Manic Panic and it's a condition based vegan hair dye product that only last a couple days," she said.
While the cute hair colour is allegedly safe for kids to use, the concept continued to divide social media users.
"Children absorb every potentially dangerous chemical and it just accumulates in their body. Please hold off a little longer before you do this to her again," one user said.
"I'm trying to be very polite but this disturbs me."
Another user suggested Ms LeBlanc was "irresponsible" for being persuaded by a two-year-old.
"This is so irresponsible of you," one parent wrote.
"Of course she's going to want it. She's a kid! She doesn't know what she wants! And you, the parent should know better! She's going to be bald by the age of 20.
"Adorable! But no I wouldn't do it to my daughter," another added.
