Results & Research
What changes, week by week — and the published research behind the key actives in our hair and face formulas.
How to read this page. The studies are of our key ingredients, not of NUXI products. Where a study used a different strength or form than we do, the card says so, and every card links to the study itself.
For Hair
2.25 → 6.02
anagen-to-telogen ratio after 24 weeks
A lotion with Redensyl (and Sepicontrol A5) against a vehicle, twice daily: 81% of treated patients improved, with no significant side effects.
Katoulis et al. · Dermatologic Therapy · 2020
Randomised, vehicle-controlled · 44 people
In NUXI: Redensyl 3%, Hair Growth Serum
Read the study on PubMed →= 2% minoxidil
hair count at 6 months
Rosemary oil against 2% minoxidil: both raised hair count significantly by month six, with no difference between them — and less scalp itch on rosemary.
Panahi et al. · Skinmed · 2015
Randomised trial · 100 people
Studied as rosemary oil. In NUXI: rosemary extract
Read the study on PubMed →↑ growth
in follicles from men with pattern hair loss
In hair follicles grown in the lab, caffeine countered testosterone’s growth suppression — and on its own stimulated growth.
Fischer et al. · Int. Journal of Dermatology · 2007
Lab study · follicles from 14 biopsies
In NUXI: caffeine, Hair Growth Serum
Read the study on PubMed →+56% · +85%
two hair-growth genes (FGF7, noggin)
A fluid with 2% pea sprout extract, applied to the scalp, raised the expression of two genes relevant to hair.
Grothe et al. · Phytotherapy Research · 2020
10 volunteers · run by the ingredient’s maker
In NUXI: Anagain 4% (pea sprout extract)
Read the study on PubMed →For Skin
= hydroquinone
melasma score at 12 weeks — fewer side effects
3% tranexamic acid against 3% hydroquinone + dexamethasone, one side of the face each: both reduced melasma, no significant difference — and significantly fewer side effects on the tranexamic side.
Ebrahimi & Naeini · J. Research in Medical Sciences · 2014
Double-blind, split-face · 50 people
Studied at 3%. In NUXI: 4%, Face Serum
Read the study on PubMed →4 weeks
to less hyperpigmentation than the base cream
A 5% niacinamide moisturiser significantly decreased hyperpigmentation and increased skin lightness against its base; in the lab it cut pigment transfer by 35–68%.
Hakozaki et al. · British Journal of Dermatology · 2002
Paired clinical trials + lab models · 138 people
In NUXI: 10% in the Face Serum, 5% in the Cream
Read the study on PubMed →2 weeks
to lower sebum output than placebo
2% niacinamide significantly lowered the rate the skin produces oil after two and four weeks against a placebo; surface oil fell by week six in a second group.
Draelos et al. · J. Cosmetic & Laser Therapy · 2006
Double-blind, placebo-controlled · 130 people
Studied at 2%. In NUXI: 10%, Face Serum
Read the study on PubMed →−60%
melanin in a 3D human skin model
Alpha arbutin reduced melanin to 40% of the untreated model, and lowered the activity of tyrosinase, without harming the cells.
Sugimoto et al. · Biological & Pharmaceutical Bulletin · 2004
Lab study · run by the ingredient’s maker
In NUXI: alpha arbutin 2%, Face Serum and Cream
Read the study on PubMed →One photo on day one, one every four weeks. Three rules make them honest: