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Study summary · Skin, hair & photoaging

What are the clinical anti-aging effects of topical kinetin and niacinamide, alone and in combination, on Asian skin?

In one paragraph

Niacinamide, a randomized, double-blind, placebo-controlled trial (J Cosmet Dermatol 2007, PMID 18047609) — group 1 (kinetin + niacinamide) showed significant reductions in spot, pore, wrinkle, and evenness counts at weeks 8 and 12. Scope: over 12 weeks, and the abstract states no limitations.

Source: J Cosmet Dermatol 2007, PMID 18047609 ↗ · Research map · How Magellan grades evidence · evidence confidence: low

J Cosmet Dermatol · 2007 · PMID 18047609 · DOI 10.1111/j.1473-2165.2007.00342.x

Plain-English summary written and published by Magellan Longevity · medical review by Gabriel Radu, DO (physiatrist, NPI 1376861765). We summarize what the paper reported — we did not run this study.

The takeaway

A combination of kinetin and niacinamide significantly improved multiple signs of skin aging in Asian subjects, outperforming niacinamide alone for some parameters.

The question

What are the clinical anti-aging effects of topical kinetin and niacinamide, alone and in combination, on Asian skin?

What they tested

The study aims to assess the anti-aging effects and efficacy differences between kinetin plus niacinamide and niacinamide alone versus a vehicle placebo in an Asian cohort, hypothesizing that these compounds may have beneficial effects.

How they did it

Fifty-two Taiwanese subjects participated in a randomized, double-blind, placebo-controlled, split-face comparative study. Group 1 applied 0.03% kinetin plus 4% niacinamide, while Group 2 applied 4% niacinamide. Treatments were applied to one side of the face and a placebo to the other for 12 weeks. Skin parameters were evaluated at baseline, 4, 8, and 12 weeks using noninvasive biometrological instruments.

What they found

Group 1 (kinetin + niacinamide) showed significant reductions in spot, pore, wrinkle, and evenness counts at weeks 8 and 12. This group also had a significant increase in corneal hydration at week 12 and persistent decreases in erythema index at weeks 8 and 12. Group 2 (niacinamide alone) showed significant reductions in pore and evenness counts at week 8 and wrinkle counts at week 12.

What it means

Kinetin and niacinamide demonstrate a synergistic anti-aging effect, suggesting they have multiactive, multifunctional, and pluripotent effects on skin and are promising for future anti-aging cosmeceuticals.

Limitations

The abstract does not explicitly state any limitations of the study.

Where the published abstract does not list limitations, we say so rather than inventing them. Read the full paper on PubMed before drawing conclusions.

“significant reductions in pore and evenness counts and wrinkle counts were noted”— from the published abstract, J Cosmet Dermatol 2007

The paper at a glance

TitleThe clinical anti-aging effects of topical kinetin and niacinamide in Asians: a randomized controlled trial
JournalJ Cosmet Dermatol
Year2007
PMID18047609 ↗
DOI10.1111/j.1473-2165.2007.00342.x ↗
TopicSkin, hair & photoaging

Read the source: PubMed record (authors, abstract, full citation) ↗ · Publisher via doi.org ↗

Where Magellan uses this paper

This citation sits behind the evidence grade on the pages below. Grades are set from the research and are independent of affiliate commissions.

Niacinamide (Vitamin B3) Serum

Randomized, mostly split-face trials indicate that topical niacinamide can modestly improve the appearance of fine lines and wrinkles, hyperpigmented spots, red blotchiness, sallowness and skin elasticity, while strengthening the skin barrier and reducing transepidermal water loss.

Niacinamide (Vitamin B3) Serum

Niacinamide (nicotinamide) is the amide form of vitamin B3 and a precursor of the cellular cofactors…

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Research describes the compound or intervention studied. It is not a claim about any specific product.

Cite this page

These citations point at this summary. To cite the original paper with its full author list, use the PubMed record or doi.org.

APA
Magellan Longevity. (2026). What are the clinical anti-aging effects of topical kinetin and niacinamide, alone and in combination, on Asian skin? [Plain-English summary of J Cosmet Dermatol 2007, PMID 18047609, DOI 10.1111/j.1473-2165.2007.00342.x]. Magellan Longevity. https://magellanlongevity.com/study/d18047609.html
BibTeX
@misc{magellan_d18047609, title = {What are the clinical anti-aging effects of topical kinetin and niacinamide, alone and in combination, on Asian skin?}, author = {{Magellan Longevity}}, year = {2026}, howpublished = {\url{https://magellanlongevity.com/study/d18047609.html}}, note = {Plain-English summary of PubMed PMID 18047609; DOI 10.1111/j.1473-2165.2007.00342.x; J Cosmet Dermatol 2007. Reviewed by Gabriel Radu, DO}, urldate = {2026-08-11} }
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How this summary was made. Every section above restates what the published abstract of PMID 18047609 reports — the question, the design, the numbers, the authors’ own conclusion and their stated limitations. We do not add claims the paper did not make, and we keep negative and no-effect findings in. Magellan’s evidence grades are set from research like this and never from affiliate commissions.

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Educational information, not medical advice. This is a plain-English summary of published research; it is not a treatment recommendation and nothing here is intended to diagnose, treat, cure, or prevent any disease. Individual studies can be wrong, and a single paper rarely settles a question. Talk to your physician before acting on any research, especially if you are pregnant, nursing, or taking medication.