Guide

Crowned vs The Ordinary: the hair serum that makes your roots look a week unwashed

The Ordinary's Multi-Peptide Serum for Hair Density is cheap until you count the washes. Its unhappy customers say it leaves roots so oily and tacky they have to shampoo again the next morning, and plenty went through bottle after bottle with nothing to show. Crowned by Her Part is water-based, sinks in clean, and brings five peptides plus saw palmetto and rosemary for fuller, thicker-looking hair. Crowned wins.

By Her Part10 min readPublished Oct 15, 2026Updated Oct 21, 2026

Short answer: The Ordinary's Multi-Peptide Serum for Hair Density is cheap until you count the washes. Its unhappy customers say it leaves roots so oily and tacky they have to shampoo again the next morning, and plenty went through bottle after bottle with nothing to show. Crowned by Her Part is water-based, sinks in clean, and brings five peptides plus saw palmetto and rosemary for fuller, thicker-looking hair. Crowned wins.

Fuller, thicker-looking hair without the pills, the drugs or the grease

Crowned by Her Part is a water-based, leave-on peptide scalp serum. A few drops on your thin spots, the Fingertip Trick, and you get on with your day. It sinks in, leaves your roots clean, and builds fuller, thicker-looking hair.

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You picked it up because it was a bargain and the brand is everywhere. You put it on before bed like the box says. And in the morning, your roots looked like you'd skipped a week of washing, stuck flat to your scalp in the exact spot you were trying to hide.

We went through 34 negative reviews of The Ordinary's hair serum from Amazon, Reddit, GoPicky and editor tests. The number one complaint is the feel.

Which is better, Crowned or The Ordinary?

Crowned. Women say The Ordinary hair serum leaves their roots oily and tacky by the next morning. Crowned is water-based and sinks in clean. It has five peptides plus saw palmetto and rosemary. Use it every day for fuller, thicker-looking hair.

Crowned vs The Ordinary at a glance

	Crowned by Her Part	The Ordinary Multi-Peptide Serum for Hair Density
Made for	Women over 50 with thinning hair	"All Hair Types"
Base	Water-based, water is ingredient one	Leave-in serum
Feel women describe	Sinks in, clean roots	"Oily mess," "tacky film," "greasy roots"
When you can wear it	Morning or night, then style	Brand says "ideally at bedtime"
Peptides	Five	Two short ones
Saw palmetto	Yes	No
Rosemary	Yes	No
Sulfite (sodium metabisulfite)	No	Yes

An oily mess you wash out every morning

This is the big one. "It is an oily mess." "Makes hair look very oily, perhaps that is why they suggest putting it on at bedtime. Expect that you'll have to wash hair before going out." "Leaves hair with a terrible film. You will have to wash your hair the next day." One reviewer said the residue made her scalp look like she hadn't washed in more than a week. Another had to take a second shower right after applying it to a clean scalp. Even PureWow's testers said their roots looked greasy.

Think about what that does to thin hair. Oil glues the strands together into little clumps, and every gap between the clumps is scalp. You put it on to look fuller and it makes your thin spots shine.

And the extra washing adds up. Shampooing every morning, blow-drying every morning, all to undo a serum.

Crowned is water-based. Water is the first ingredient on the label. It sinks in until you can't feel it, leaves no film, and your roots stay light enough to lift. Put it on in the morning and walk out the door.

Bottle after bottle, nothing to show

No visible results is complaint number two. "I went through 4 bottles using it religiously... It didn't yield any results." "I have been using for four months. No sign of hair growth." "This doesn't work one bit. Wish it did!!!!" One reviewer said the front of her hair felt thinner than when she started. Another said her hair "only feels good for the moment you apply it."

The Ordinary's peptide story is two short peptides plus caffeine. Crowned brings five peptides, four of them modeled on growth factors studied in the hair cycle, plus saw palmetto and rosemary, the two botanicals with human hair-count studies behind them. The Ordinary has neither.

Light on your scalp, loud in the mirror

Five peptides, saw palmetto, rosemary and Scutellaria root in a water-based serum that disappears into your scalp. Crowned by Her Part gives you fuller, thicker-looking hair you stop hiding under scarves and good lighting.

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Red, itchy, burning scalp

Side effects are complaint number three. "Made my scalp red and itchy!" "Extremely dry, itchy and flaky." One Reddit user said the back of her head "burns for several days after every time" with what felt like tiny blisters or hives. Another said it gave her scalp acne and felt like it was clogging her pores. One person reported a migraine that lasted a week, which is a rare report, but she said the company didn't seem to care.

An irritated, flaking scalp is the last thing thin hair needs. Crowned is a gentle, water-based leave-on with Scutellaria root, soybean germ and wheat germ extracts and vitamin E, and no sulfite. If your skin is sensitive, try it on a small spot first, like any new skincare.

The shed nobody warned you about

Several reviewers say their shedding went up. "After using it for about 2 weeks, my hair started shedding really bad," one wrote, adding that she found others saying the same. Another said she developed bald spots where she'd been rubbing it in, and couldn't return it because a month had passed.

Sudden, heavy shedding deserves a doctor's visit to rule out a medical cause. Crowned has no "this is normal, keep going" speech. It's daily cosmetic scalp care, and your two-week photos keep the score.

The Fingertip Trick

Part your hair where it looks thinnest. Put a few drops of Crowned straight onto the scalp there, then use your fingertips in small, slow circles until the serum disappears. Leave it on. Style as usual, or go to bed. That's the whole routine, once a day, every day, and it's the reason Crowned lands on your scalp instead of in your stomach or all over your pillow.

Crowned by Her Part is water-based (water is the first ingredient on the label) and made with five peptides, four of them modeled on growth factors studied in the hair cycle (aFGF, bFGF, IGF-1 and VEGF) plus a conditioning peptide, along with arginine, saw palmetto, Scutellaria root, rosemary, eucalyptus, soybean germ and wheat germ extracts, and vitamin E.

What the ingredient research shows:

Rosemary: in a randomized trial of 100 men with thinning hair, rosemary oil performed on par with 2% minoxidil at six months, with less scalp itching in the rosemary group (Panahi et al., Skinmed, 2015).
Saw palmetto: 50 men using topical saw palmetto products had higher average and terminal hair counts at 12 and 24 weeks (Wessagowit et al., Australasian Journal of Dermatology, 2016).
Growth-factor peptides: topical FGF-1 and FGF-2 brought on the hair growth phase earlier and kept it going longer in mouse studies (Lin et al., BioMed Research International, 2015).

Verdict: Crowned wins

The Ordinary made a budget serum for every hair type, and its customers say it leaves oily, tacky roots, irritates the scalp and does nothing visible after bottles of use. Crowned by Her Part was made for women over 50: water-based, clean on the roots, with five peptides plus saw palmetto and rosemary. For fuller, thicker-looking hair, Crowned is the clear choice. More matchups: Crowned vs Divi and Crowned vs Vegamour.

What you'll notice with Crowned, and when

Hair runs on a slow cycle: each strand grows for years, rests for two to three months, then makes way for the next (Paus and Cotsarelis, New England Journal of Medicine, 1999). Crowned is built for that cycle, so the changes stack up in a clear order.

From the first days: a light, water-based serum that sinks in, clean roots, and a Fingertip Trick you'll actually look forward to.
In the first weeks: hair that feels softer, with more gloss and bounce. Eucalyptus extract in a scalp lotion improved measured gloss and bounce with ongoing use (Mamada et al., Journal of Cosmetic Science, 2008).
Over the first two months: more lift at the root and hair that looks thicker where it grows from.
Months three to six: fuller-looking coverage where you used to see scalp, a ponytail with weight in it, and photos that look like you again. That's the window the ingredient studies measured: topical saw palmetto at 12 and 24 weeks, rosemary oil at six months.

Take a photo of the top of your head on day one and every two weeks after. Daily use builds the result, and the photos show it.

You want proof, not hype. Skip Trustpilot. Read Her Part reviews from real women on our serum page and see how Crowned gave them fuller, thicker-looking hair.

Frequently asked questions

Is The Ordinary hair density serum greasy?

Many reviewers say yes. Customers describe an "oily mess," a tacky film and greasy roots that need washing the next day, and PureWow's testers noted greasy roots too. Crowned is water-based and sinks in with no film.

Is Crowned better than The Ordinary hair serum?

For women over 50 who want fuller, thicker-looking hair, yes. Crowned by Her Part has five peptides plus saw palmetto and rosemary in a water-based serum. The Ordinary has two short peptides and neither botanical.

Does The Ordinary hair serum cause shedding or irritation?

Some customers report more shedding, plus red, itchy, flaky or burning scalps and scalp acne. If you're shedding heavily, see a doctor to rule out a medical cause.

Can I wear Crowned during the day?

Yes. Crowned is water-based and sinks in clean, so you can apply it in the morning with the Fingertip Trick and style as usual.

You've waited long enough for something that shows up

Crowned by Her Part, the water-based peptide scalp serum for fuller, thicker-looking hair. No pills, no prescription, no greasy roots. Just the Fingertip Trick every day and a mirror that starts agreeing with you.