If you're a frequent rider of the NYC subways, like yours truly, perhaps you'll recall a series of "subway etiquette" posters the MTA had released on most trains. The do's and don'ts of the subway, if you will. Most are pretty obvious (offer your seat to elderly and pregnant passengers) and some just make me laugh (like the one urging men to stop 'spreading' their legs wide, thereby taking up multiple seats, which by the way, fellas, WHY DO YOU FEEL THE NEED TO DO THIS?).

And while I like to think I'm a pretty obedient (heck, perhaps even a model subway citizen), there's one rule I always break. The no primping rule. But let me clarify. I don't do my makeup. I don't file or clip my nails (yikes, gross!), but almost always during the summer, I'll apply and reapply hair oil to help with my frizz and split ends. There, I said it. Guilty as charged.

Let me back up a bit though.

As someone with pretty dry, coarse and, let's just add insult to injury here, very thick hair, I've struggled to tame my locks for most of my life. Add to that, I pretty consistently curl my hair close to every day, so the styling damage doesn't help the situation at all.

While I was living in San Francisco (and had much shorter hair) a few girlfriends introduced me to hair oil routines (pre-shampooing, before heat styling and as needed on-the-go touch ups). And it's been a habit that's stuck since, especially once I decided to grow my hair out in perhaps one of the most muggy and humid cities to live in during the summer (hello New York!). So when Living Proof asked me try out their latest product launch, the No Frizz Nourishing Oil, I was up for the challenge.

Oddly enough, I'm a newbie to the Living Proof family (so I indulged in their online product selector just to make sure I was ordering complimentary products that would work well together for my hair), the lineup of which you can see here. All shampoos, conditioners and hair masks meant for my type of dry and somewhat styling/coloring damaged hair, ending with a cap off from the No Frizz Nourishing Oil. I incorporated the oil much as I would my regular oil routine: post-washing on damp hair before towel drying, a light layer that I comb through with my fingers before curling my hair and then, I brought it with me during the day for on the go, mainly surface layer touch ups.

OUTFIT DETAILS: St. Roche top via Plan de Ville // Guess jeans // Sam Edelman "Gigi" sandals // Monica Vinader bracelets and necklace

The results? Let's just say it's been New York rain, humidity and subway tested now, and it passed. Beautifully. My hair is far from perfect (and I'm due for a trim as you can see my split ends in these photos here), but I love how the No Frizz Nourishing Oil really helped keep my curls in tact without weighing them down (an easy territory to slip into when applying oils) and kept frizzy, flyaways at bay for a better majority of the day. It didn't feel like the product was simply sitting on top of my hair or at the ends, but more so was being absorbed to really moisturize -- a big differentiator for someone who has dry hair but doesn't necessarily need the additional volume or weight.

Added bonus? A few fellow subway riders actually really liked the smell of it (it's good!) and asked where they could pick it up themselves.

I guess that's one point for Krystal. Zero for the MTA.

Have you guys tried it out yet? What are your thoughts?

This post was in collaboration with Living Proof. As always, all opinions and styling are my own. Thank you for supporting all This Time Tomorrow collaborations!

Photos by Lydia Hudgens