John Frieda ULTRAfiller+ Hair Density Scalp Serum, Hair Thickening Serum for Fine Hair, 2 fl oz
John Frieda ULTRAfiller+ Hair Density Scalp Serum, Hair Thickening Serum for Fine Hair, 2 fl oz
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John Frieda ULTRAfiller+ Hair Density Scalp Serum, Hair Thickening Serum for Fine Hair, 2 fl oz

Key item features

  • HAIR THICKENING SERUM - Powered by biotin, peptides and caffeine, this triple action hair thickening serum boosts root health to promote thicker hair with regular use
  • BOOSTS ROOT HEALTH - Less breakage leads to reduced hair shedding and increased hair density
  • LIGHTWEIGHT - This hair thickening serum is a lightweight, non-greasy solution for thin, fine hair
  • SAFE FOR YOU AND YOUR HAIR - This is a cruelty-free, vegan formula with no animal-derived ingredients and it’s also formulated without parabens
  • FINE HAIR SYSTEM - The ULTRAfiller+ For Fine Hair collection delivers maximum results as a system, so use this hair thickening serum with our hair thickening shampoo and conditioner as well as our thickening spray
Current price is $10.97$5.49/fl oz
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4.3 out of 5 stars
stars248 ratings170 reviews
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Showing 1-3 of 170 reviews

Mar 25, 2026
Deborah
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Count: 1
5 out of 5 stars review

Verified Purchase

Does What It Says

This product does exactly what it says - I swear hair growth has increased since I began using the product (about 3-4 months ago). I put on scalp every morning (or every time I wash my hair) - blow dry / style and off I go. If I wash my hair in evening I will put it on and rub in. I also use the shampoo and conditioner - love both - adds fullness and manageability. Try it!!!!

Helpful?93cc86f0-6890-11f1-970f-13faca9cd0ac17599408669
Feb 1, 2026
Nikki
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Count: 1
5 out of 5 stars review

Verified Purchase

Great results

I noticed as I got older that I was starting to lose more hair than I was before, so I tried several products and this one was wonderful. You massaging into your scalp and it makes your scalp feel great and I don't have any hair in the drain anymore, I've been using it for about six months and I just love it. Great product.

Helpful?93cc86f0-6890-11f1-970f-13faca9cd0ac17599408669
Dec 8, 2025
Geriberry
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Count: 1
5 out of 5 stars review

Verified Purchase

Actually works

I have been using this for a little while, and have already seen results. I am balding, and after using this, I actually have a little fuzz growing. I am aware that I will never have a full head of hair again, but at least I don't look quite as bad!

Helpful?93cc86f0-6890-11f1-970f-13faca9cd0ac17599408669