I tested everything from Halsey's beauty brand, and her eye shadows are one of the best celebrity products I've tried

Speaking with Byrdie in January, Halsey said About-Face was created for the "generation of e-girls and e-boys out there" who want to express themselves with vibrant pigment and messy makeup.

That being said, the line doesn't include any foundation or concealer, so I applied products from my own stash. I used Rare Beauty's foundation, e.l.f.'s Hydrating Camo concealer, and Milani's Stay Put Brow Color.

The $21 Shadowstick — which I purchased in a chartreuse shade called Acidic — is described by the brand as an "insanely pigmented, one-stroke eye crème" that can last more than 10 hours on the eyes.

The $24 Matte Fluid Eye Paint, on the other hand, is a liquid pigment that's meant to provide opaque color in "one swipe." They're also said to dry matte with a "smooth, no-budge, no-smudge finish." I purchased the navy-blue shade called Lost Unfound.

The shimmering Shadowstick was extremely easy to apply, in my experience. The product looked vibrant with one swipe of the pencil, and it blended seamlessly with both my finger and a brush.

I did have to use a bit more caution when applying the blue eye paint, as the product contains a large, doe-foot applicator that isn't great for precise lines. But with the help of an angled eyeliner brush, I was able to create a bold and sharp wing.

What I most loved about these eye products is how versatile they are. Both items can be used as eye shadow and eyeliner, and they can create both everyday and bold looks.

The $30 powder is sold in four shades that are said to feel "crazy smooth" and create a "glass-like finish" on your skin. I purchased the Stay in Bed shade, which is described as a "shimmering pale peach."

About-Face doesn't currently offer blush, so I decided to use this shade to bring both shine and color to my cheeks. While it didn't do the latter, it did make my skin glow in a way that was both eye-catching and natural. I also loved how the powder felt creamy on the skin rather than chalky.

Sold in 11 shades, the $22 liquid lipsticks are infused with peppermint oil and meant to provide "enduring and intense coverage" in one swipe. I tried a brown color called Nudist Judas.

I knew I would love this lipstick as soon as I applied a single swipe. The product provided opaque color right away, and it looked freshly applied from morning until evening — even after eating numerous meals.

It did feel a bit dry on the lips when I first applied it, but the lipstick somehow became more and more comfortable as the day went on.

I've seen videos of Halsey using the product across her eyelids, so I wanted to try the technique for myself.

Unfortunately, my first attempt was a disaster. I applied a tiny swipe of color and tried to blend it with a brush, but it just created a patchy mess. That being said, I think my initial struggles were the result of the product's bright-blue color. I imagine it would've been easier to work with another shade.

Luckily, my second attempt went a lot smoother. I first applied a powder baby-blue eye shadow, and then slowly blended in the About-Face liquid pigment. The outcome was intense — and I much prefer the shade as an eyeliner — but the formula was so good that I'm tempted to buy more shades (and try making my own colors, as Halsey recommends).

I started with the $20 lip gloss. Of the four available shades, I chose a sheer and sparkling pink called Such Great Heights, which provided moisture, shine, and a slight cooling effect to my lips.

I then wiped it off and tried the brand's $17 lip liner in the shade Pink in the Morning. The product — which is said to be infused with hyaluronic acid and vitamins C and E — was creamy and pigmented enough to wear on its own, in my opinion.

For my final look, however, I decided to wear both products together. The lip liner created a nice base for the sparkling lip gloss, and I was pleasantly surprised to find that both products held up really well after eating lunch. I only needed to retouch the gloss slightly.

I loved the brand's powder, so I was interested to see how these two highlighters would compare. I used the $25 shimmer stick in the shade Please Indulge Me on my right cheekbone, and the $32 liquid highlighter in the Fight or Flight color on my left.

I wasn't too impressed with the Light Lock Stick. It did make my cheekbone shine, and it blended into my foundation nicely, but it also worked similarly to lots of other cream highlighters I already own.

I definitely liked the liquid version better, and I found that its high shine held up stronger throughout the day. Still, this product is also similar to others on the market.

If you're going to try About-Face for yourself, I highly recommend the brand's Paint-It Matte lipsticks, Shadowsticks, and Matte Fluid Eye Paints. I love how all three products are easy to use, full of pigment, and sold in tons of unique shades.

The eye paints in particular are especially innovative and work in a unique way that makes them stand out from other liquid eye shadows I already own.

I'm also a big fan of About-Face's lip liners and lip gloss, though they're a bit pricey for what you get. You can find similar products for much lower prices at just about every store.

My favorite of the three About-Face highlighters is the Light Lock Powder. I love how you can use it as a precise highlighter, or as an all-over product to add a natural shine to your look. For bolder makeup days, the Light Lock Highlight Fluid is another great option.

I'm a bit indifferent to the Light Lock Stick, as it added a nice shine to my cheekbones, but it also wasn't bright enough to make me reach for it again.

That being said, I feel these highlighters are extremely overpriced, costing between $25 and $32 each.

The $28 spray is said to prime skin and help your makeup last while being "invisible." Unfortunately, my makeup didn't seem to last better or longer than it does with my usual Mac Prep + Prime Fix+ spray, and I noticed the About-Face product left white dots all over my clothes that I had to clean off.

I also didn't enjoy using the $14 blending tool, as I thought it was too big and awkward to properly blend products into my face.

As is the case with most makeup brands, some About-Face products work better than others, and numerous items in the line are similar to other less expensive ones on the market. But overall, it's clear to me that Halsey put a lot of time, effort, and her own makeup skills into creating this line.

I also really appreciate Halsey creating makeup for those of us who prefer bold and unconventional looks, so I'll be keeping an eye on the brand's social-media pages to see what new colors and exciting things they release next.

I'd even argue at this point that other celebrities with beauty brands could learn a lesson or two from Halsey, no matter how new she is to the industry.

This is an opinion column. The thoughts expressed are those of the author(s).