BACH STYLE: The biggest beauty question from The Bachelor has finally been answered.

Since watching The Bachelor last night, there’s one thing I haven’t been able to get off my mind.

No, it wasn’t just the scary parallels the show is having to The Handmaid’s Tale.

We need to talk about the sorcery that was Jennifer’s makeup.

After feeling shortchanged about her casting in the '80s inspired photoshoot for Women's Day, the marketing manager dived head first into the pool to pose closer to Matty.

When she emerged from the water, her makeup had not moved. Not even a centimetre. There was not even a HINT of smudged mascara.

Meanwhile I just have to breathe to end up with mascara halfway down my face.

Viewers responded in disbelief.

The waterproof mascara she swears by is Maybelline's Great Lash Mascara, $12.95.

"It's literally the best. It doesn't smudge and it's great for the smaller hairs. The waterproof version is always in my kit."

Ultimately, she says don't overdo it.

"Keep it simple, don't overcake and lots of dabbing [when applying]," she says.

"There are lots of waterproof products on the market but I think it's also because people just want the longevity and no smudges!"

What are your go-to waterproof makeup products? Tell us below.