A TikTok User Made a Solid Case for Using a Hyaluronic Acid Skin-Care Serum in Your Hair

Woman applying serum in a dropper to her hairGetty Images

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The concept of hyaluronic acid in hair-care products isn't a new one. According to cosmetic chemist David Petrillo, when it shows up in shampoos and conditioners, hyaluronic acid binds to the strands and follicles encourage a smoother look and feel and help prevent breakage. But using a straight-up hyaluronic acid serum intended for the skin seems a little strange, no? Not to mention potentially wasteful if it's not effective. But that didn't stop one TikTok user from experimenting and sharing her results with what has become an audience of hundreds of thousands of viewers.

On August 29, Kaitlyn Boyer posted a video with the caption, "Saw a TikTok that said hair oil doesn't moisturize your hair, only water can. So I tried Hyaluronic Acid!" In the clip, we see her dry-looking blonde ends before she wets her hair and applies The Ordinary's Hyaluronic Acid 2% + B5. The $7 skin-care serum is made with a mixture of different molecular weights of hyaluronic acid — not to mention vitamin B5 — to help replenish moisture and support the skin barrier. 

Boyer says she felt a "major difference" after just two nights of use. After two weeks, her hair looks noticeably softer, and she says it's "way more manageable."

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It sure looks like a hyaluronic acid serum indicated for skin could be a boon for hair. But can hyaluronic acid serum really moisturize hair? Yes and no.

"Hyaluronic acid is a humectant, and rather than moisturizing hair, it works by drawing moisture in from the environment," says Connecticut-based board-certified dermatologist Deanne Mraz Robinson. "When applied to damp hair, HA can hold approximately 1,000 times its weight in water."

And The Ordinary's Hyaluronic Acid 2% + B5 especially may make quite a bit of sense for hair. "It uses a combination of hyaluronic acid, hyaluronic acid crosspolymer, and B5, which does make sense for hair treatment," says cosmetic chemist Ginger King, who explains that the hyaluronic acid crosspolymer is a film former to seal in moisture. 

Best Hyaluronic Acid Serums 2021: The Ordinary Hyaluronic Acid 2% + B5 on a white background

The Ordinary Hyaluronic Acid 2% + B5

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Mraz Robinson suggests applying the HA serum to your scalp as a treatment so it can soothe and nourish dry skin. "Then brush your hair, spreading the serum down the hair shaft to the ends," she advises. "Leave it on for a few minutes — or if you're super dry, overnight — and then wash your hair as normal."

But don't toss your hair oil. Instead, Mraz Robinson says, use your favorite jojoba- or argan-based hair oil after the hyaluronic acid serum to retain more moisture, seal the cuticle, and fight frizz.

The Best New Makeup Products Hitting Shelves in September

Best New Makeup Products and Beauty Products of September 2021 Shop Now  Olive  June Rose Inc. Oribe

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With new makeup dropping at dizzying rates, we've taken it upon ourselves to make it easier for you to sort through the latest lipsticks, foundations, eye shadows, the hottest (and sometimes unexpected) collaborations, and even the advent of the next, big celebrity-backed brand. We're not exaggerating when we say Allure editors eagerly pore over every single launch to find the standouts each month. Although we're partial to our particular favorites, there's something new and shiny for everyone. It might take a little digging, but the resulting treasure is totally worth it.

If you're like us, your heart rate probably spikes whenever you discover a new makeup category, improved formula on an old classic, or real strides towards sustainability being made. In 2021 alone, we're seeing product categories like skin tints, cream blushes and bronzers, colorful liners, and brow waxes explode in popularity. It's enough to make anyone consider an overhaul of their makeup collection to make room for new goodies — or to add a select few to their rotations and jazz up their everyday look. As the world slowly opens back up, don these products for a day in the office or for a night out with friends. After over a year of staying indoors, quite literally anything goes.

Just as we always do with hair and skin care, we're sharing the best new makeup dropping in September that we recommend adding to your cart. As the colder months peek at us from around the corner, it might be time to refresh your beauty routine and experiment with all of the newness that's available at your fingertips. And if you need more makeup inspiration, you can always check out last month's launches that are equally as fresh and exciting.

Be sure to check back weekly for new makeup launches that are dropping this month. (Trust us, you don't want to miss out.)

All products featured on Allure are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission.

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How to Create a Capsule Wardrobe

The Everygirl’s product selections are curated by the editorial team. If you buy something through our links, we may earn an affiliate commission, at no cost to you. We only recommend products we genuinely love.

Source: Crystalin Da Silva

Mastering personal style and curating a closet that resembles it are things that even the most well-trained eyes can take years to master. While there’s no one answer for feeling like you have your style completely under your belt, one approach to wardrobe building can provide a shortcut to getting there: building a capsule wardrobe.


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Approaching shopping with a capsule wardrobe in mind has the power to take you from spontaneously buying pieces that you never reach for and helps ensure that every single thing hanging in your closet is something that’s a core part of your clothing rotation. It’s a mindset switch that makes getting dressed and feeling confident a daily occurrence because the items of clothing you own have a purpose—and countless ways you can style them.

Ready to start your capsule wardrobe journey? Look no further. Here’s everything you need to know about getting started on your own and never saying “I have nothing to wear today” again.



What is a capsule wardrobe?

The simple definition is that it’s a curated wardrobe made up of versatile pieces that you love to wear. 

A capsule wardrobe consists of a set of tops, bottoms, dresses, outerwear, shoes, and accessories that can be easily mixed and matched together to be dressed up, down, and anywhere in between. It means your closet has less trendy pieces that will only be worn for one season and more high-quality ones that stand the test of time and can be worn for years to come.

Once you master a starter capsule wardrobe, it can be curated and swapped from season to season. It makes it easy to pack up and take out clothes for the appropriate season because every time you pull them out, they’re just as in style as they were at the time you bought them.


Why we love it

All too often, we buy fun new clothes for the season we’re in but find ourselves turning to old tried-and-true favorites. It made us wonder: Why keep a closet full of things you don’t love?

As shoppers, we’ve been conditioned to want more and to keep buying every time the weather changes. But the key to a versatile wardrobe isn’t based on quantity, it’s based on quality and versatility. The goal is to avoid a section of clothes in your closet that you don’t reach for because they’re ill-fitting or out of style.

A capsule wardrobe reserves your hard-earned coin for pieces that are going to get cost per wear and last you as long as you want them to. A super-trendy piece that you’re going to wear to one event then never wear again doesn’t have a place here. Instead, you want something that’s true to your style that you know you’ll probably reach for two years from now. You’ll have less clothing than you did before, but you’ll feel like you have much more.


How to start your own capsule wardrobe

The first step is to take a good, hard look at what you already own, and purge the rest. We don’t mean opening it and flippantly going through the hangers. We mean that you should take every single piece out of your closet, then evaluate if it should go back in.

Then, sort each item into one of four piles:

  1. I love it and would wear it tomorrow: These pieces fit your body, your lifestyle, and you’re happy wearing them. Put these back first.
  2. Maybe: These pieces might not fit perfectly, have sentimental value, or you just can’t put your finger on why you don’t wear it more. (If you haven’t reached for it more than once, it belongs in this pile too). Put all of these items in a box and store it in a place that’s easily accessible. If you find yourself reaching for an item, put it back in your closet after; if you haven’t reached for it by the end of the season, keep it in the box to take to donate. This is noncommittal (for now) and allows you to change your mind later.
  3. Hard no: Whether it’s because it doesn’t fit or you just decided you don’t like it, pack these pieces up to donate them.
  4. Seasonal: There’s no need to keep a cashmere sweater next to your summer tank tops. Move all of your seasonal pieces into a storage location that will be easy for you to swap out once the time is right.

Now, look at what’s left in your closet and evaluate what your personal style is and what holes you have. Maybe you’re completely set on jeans but could use a new jacket for fall. Now that you have a clear vision of what you’ll be able to pair that jacket with, you’ll make a better selection for what fits your closet. This doesn’t mean you have to completely forego trend pieces and forever live wearing button-ups and jeans—it just means that when you do purchase trendier pieces, you know that they’ll have a place in your wardrobe and that they’ll get wear.


white tee / white tee (plus-size)
tank bodysuit / tank bodysuit (plus-size)
graphic tee / graphic tee (plus-size)
crewneck sweater / crewneck sweater (plus-size)
eyelet lace top / eyelet lace top (plus-size)
puff-sleeved button-up / puff-sleeve button-up (plus-size)
shirt dress / shirt dress (plus-size)
jersey dress / jersey dress (plus-size)
linen dress / linen dress (plus-size)
faux-leather leggings / faux-leather leggings (plus-size)
straight jeans / straight jeans (plus-size)
classic trousers / trousers (plus-size)
denim shorts / denim shorts (plus-size)
leather jacket / leather jacket (plus-size)
shirt jacket / shirt jacket (plus-size)
white sneakers
slide sandals
leather tote
baguette bag


How to make it work

The absolute key to making your capsule wardrobe work is to make sure that the pieces you have are versatile. This means that they can be paired with different pieces to make up completely different looks that are appropriate for any event or occasion that might come your way. These are some ways we’d make our starter capsule work:


Out to lunch

There’s nothing as timelessly classic as a white button-up, and the beauty of it is that it can be styled countless ways in your wardrobe. Here, it’s made casual by pairing it with a distressed pair of jeans, sneakers, and a shoulder bag. The limit on how many times you could wear this outfit? It doesn’t exist.


On a date

Ditch the stress of trying to figure out what to wear to a date by having a go-to dress that you can turn to time and time again. This black midi dress is the perfect one to have on deck.


To run errands

Your wardrobe needs to account for the laid-back days where you need to head out of the house but don’t need to throw on a full-blown look. A graphic tee and good pair of denim shorts can be combined for the perfect day-off look, complete with sneakers and a carry-all tote.



To the office

The perfect capsule wardrobe has pieces that can be worn to a variety of events a variety of different ways, including to the office. These trousers are perfect for the office but can be worn outside of it too when paired with a T-shirt instead of a blouse.



Out for drinks

You can never go wrong with a leather jacket, especially when paired with a casual look for a night out. Jeans, a tee, and a leather jacket is a classic combination that you can keep in your back pocket any time you need to pull together a solid look.



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How to stick with it

You’ll find that as time goes on, you probably will need different pieces for different seasons of life, both literally and figuratively. The end goal is to have a capsule you can swap out each season or two smaller capsules that you need in your rotation (like one for the office and one for everyday life).

The swap to a capsule wardrobe doesn’t happen overnight. It’s going to require more thought, less impulse purchases, and just a little bit more strategy. But over time, your closet will turn into something that represents you, no matter what you pull out of it.

As the new season approaches, start looking for holes and what you might want. Maybe you decide you’re going to buy a new accessory to pair with your basics or that a new pair of casual shoes will help you make the most of what you have. Approach your purchasing with strategy, thought, and longevity in mind, and over time, your capsule wardrobe will save you both money and frustration getting dressed.

Once your base is mastered, you can develop your capsule wardrobes for different seasons and circumstances, which we’ve already done the heavy-lifting for.


The Everygirl’s 2021 Travel Capsule Wardrobe


The Everygirl’s Summer 2021 Capsule Wardrobe


The Everygirl’s Accessory Capsule Wardrobe


The Everygirl’s Fall 2020 Capsule Wardrobe