BioSilk vs Chi (The Definitive Guide)

Do you seem to be doing all the right things with your hair, but it’s missing that little something extra? We're talking about a beautiful, silky-smooth finish and impossibly lustrous shine.

Rather than swapping out your shampoo and conditioner or your leave-in, why not add a leave-in treatment to your routine? Think: a lightweight formula that will tame the frizzies, fly-aways, and static that your regular haircare lineup just can’t subdue.

And in case you’re wondering which leave-in is worth your investment, today we’ll be talking about two giants in that specific niche: BioSilk Silk Therapy Original and Chi Infra Silk Infusion.

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BioSilk Silk Therapy vs Chi Infra Silk Infusion

Promising to fill the voids in hair cuticles, prevent split ends, and make your mane simply luminous, BioSilk’s smoothing treatment has been a salon staple for decades.

While its ingredient list leaves a lot to be desired, it’s comprised of several plant-derived ingredients and, of course, hydrolyzed silk. (Plus, it’s made without sulfates, parabens, or gluten!)

Given that the Silk Therapy Original boasts a healthy 4.7/5 rating, it’s no surprise that it’s also earned accolades such as one of Beauty Mag’s Top Beauty Pick of 2021 and The Beauty Authority New Beauty 2018 award.

The pricing varies for this product, as it’s available in several sizes ranging from ~$3 to ~$60 (0.5oz to 12oz).

Chi’s leave-in includes ingredients such as pure natural silk, as well as wheat and soy proteins.

Suitable for all hair types, this powerhouse of elements works together to add moisture and shine, reconstruct your strands, and protect hair from heat styling and damaging environmental factors.

The Silk Infusion has earned a 4.8-star rating and numerous positive reviews.

Like BioSilk, this product comes in several sizes (also 0.5oz to 12oz) and will cost anywhere from $3 to $30.

When we tried them for ourselves

Before diving deep into the realm of brand ethics, I took both treatments for a test drive myself, wanting to gauge their efficacy first-hand.

On a particularly humid day, known to send my hair into a frizzy tizzy, I started with the BioSilk Silk Therapy Original.

Its scent was a refreshing hint of floral that wasn’t overpowering.

Applying a few drops on my damp hair, it glided smoothly, and a little product went a long way.

Once dried, my hair felt supple, smoother, and those nasty fly-aways were tamed.

The *shimmer* of my strands under sunlight was hard to miss.

I paired it up with a top bun for work, and received no less than three compliments on how "put together" my hair looked that day!

The next day was Chi Infra Silk Infusion's turn.

The texture felt richer, yet non-greasy. It carried a subtle hint of a warm, earthy aroma.

Post application on damp hair, and after a blow-dry, my hair felt like it underwent a mini spa treatment.

The luster was unparalleled, and the softness was something my fingers kept returning to.

I left it open to cascade down my shoulders and let’s just say, I caught a few admiring glances at the cafe.

Both products had their unique charm, but what truly struck me was the immediate transformation they both brought about.

Not just in the appearance, but the texture and overall hair health felt enhanced.

It was like taking my regular haircare regimen and turning it up a few notches!

Now, with these results in mind, let's delve into how these brands fare ethically.

Brand Ethics

Interestingly, both brands are owned by the same company—Farouk—so let’s see how this plays out...

BioSilk is Leaping Bunny certified as cruelty-free but they aren’t vegan.

Moreover, as of 2021, BioSilk declared that they are working towards vegan formulations, clean ingredients, and more environmentally friendly efforts.

Currently, they recycle and reuse the following: plastic, metal, and cardboard.

Chi is also Leaping Bunny certified as cruelty-free and while they aren't 100% vegan, they offer plenty of vegan options.

Though their eco-conscious initiatives are unclear from a manufacturing perspective, they do carry a line of plant-derived Eco Brushes and Eco Combs, which are both recyclable and biodegradable.

Our Pick

Having personally tested both treatments, making a choice isn’t easy.

While BioSilk offered a radiant shimmer and an undeniable smoothness that drew compliments, the Chi Infra Silk Infusion left my hair feeling like it had indulged in a luxury spa day, making heads turn in admiration.

Both products undeniably uplifted my hair game, each in their own unique way.

However, considering the overall experience, efficacy, and the brand ethics discussed earlier, Chi has a slight edge for us.

It's the treatment we find ourselves reaching for when we want that extra touch of opulence.

But remember, everyone's hair is different, and what works wonders for one might not for another.

We'd suggest giving both a try and finding your own favorite!