Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(12), P. 2655 - 2655
Published: Dec. 21, 2024
The
human
skin
microbiome,
a
complex
ecosystem
of
microbes,
plays
pivotal
role
in
health.
This
study
aimed
to
investigate
the
impact
two
skincare
regimens,
with
preservatives
(CSPs)
and
preservative-free
(PFPs),
on
microbiome
correlation
quality.
double-blind
randomized
cosmetic
studywith
split-face
design
was
conducted
26
female
participants.
Microbial
diversity
abundance
were
analyzed
using
16S
rRNA
amplicon
sequence
data
quality
utilizing
Antera
3D
camera.
We
confirmed
earlier
studies
identification
major
microbial
taxa
at
genus
level,
including
Cutibacterium
acnes,
Corynebacterium,
Neisseriaceae
as
predominant
part
facial
microbiome.
Furthermore,
profile-based
subgrouping
employed,
which
revealed
that
cluster,
characterized
by
family
its
organism,
exhibited
significant
reduction
folds
count,
fine
lines,
redness
after
application
PFP
compared
CSP.
A
Spearman
analysis
highlighted
between
changes
specific
bacteria
parameters
such
redness,
pores,
texture
context
comparing
Overall,
treatment
demonstrated
greater
number
correlations
bacterial
CSP
treatment,
suggesting
distinct
regimen
Our
provides
insights
into
different
microbiome-centered
approaches
improve
our
understanding
microbiome’s
interplay
but
also
highlights
need
for
larger,
comprehensive
research
further
understand
dermatology.
Allergy,
Journal Year:
2024,
Volume and Issue:
79(12), P. 3269 - 3284
Published: Nov. 1, 2024
Abstract
Human
skin
is
colonized
with
microbiota
that
includes
commensal
bacteria,
fungi,
arthropods,
archaea
and
viruses.
The
composition
of
the
varies
at
different
anatomical
locations
according
to
changes
in
body
temperature,
pH,
humidity/hydration
or
sebum
content.
A
homeostatic
crucial
maintain
epithelial
barrier
functions,
protect
from
invading
pathogens
interact
immune
system.
Therefore,
maintaining
homeostasis
holds
promise
be
an
achievable
goal
for
microbiome‐directed
treatment
strategies
as
well
a
prophylactic
strategy
prevent
development
diseases,
dysbiosis
disruption
associated
inflammation.
healthy
microbiome
likely
modulated
by
genetic
environmental
lifestyle
factors.
In
this
review,
we
aim
provide
complete
overview
factors
can
contribute
healthy.
Awareness
these
could
basis
diseases
used
therapeutic
approach.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(42)
Published: June 21, 2023
Abstract
Delaying
aging
is
an
eternal
goal
for
humanity.
Acetyl
hexapeptide‐8
(AHP‐8)
effective
skin
anti‐aging
drug
that
locally
interrupts
the
signal
transmission
of
muscle
contractions
and
promotes
collagen
production,
thus
smoothening
wrinkles.
However,
its
high
molecular
weight
strong
hydrophilicity
limit
permeation
capacity.
To
solve
this
problem,
ionic
liquid
with
excellent
bioactivity,
MAC,
synthesized
from
l
‐malic
acid
‐carnitine
used
as
a
enhancer
to
improve
effects
AHP‐8.
The
ratio
MAC's
components
optimized
based
on
density
functional
theory
calculations
cytotoxicity
experiments.
Low
concentrations
MAC
significantly
increase
AHP‐8
transdermal
delivery,
reaching
maximum
at
5‐10
wt%
MAC.
pro‐permeation
mechanism
investigated
using
dynamics
simulations,
penetration
enhancement
performance
are
demonstrated
by
conducting
cellular,
animal,
clinical
results
show
MAC/AHP‐8
outperforms
in
terms
hyaluronic
synthesis,
anti‐inflammation,
anti‐oxidation,
inhibition
contraction,
reducing
number
area
wrinkles
increasing
moisture
elasticity.
This
study
presents
simple
efficient
vehicle
application
Clinical Cosmetic and Investigational Dermatology,
Journal Year:
2024,
Volume and Issue:
Volume 17, P. 513 - 528
Published: March 1, 2024
Background:
Overweight
and
obesity
have
become
public
health
problems
worldwide.
An
increasing
number
of
research
works
are
focusing
on
skin
physiology
the
manifestations
obesity-associated
diseases,
but
little
is
known
about
correlations
between
body
mass
index
(BMI),
facial
physiological
parameters,
microbiome
in
healthy
women.
Objective:
To
investigate
BMI,
parameters
bacteria
fungi
198
women
aged
18
to
35
years
Shanghai.
Methods:
According
international
BMI
standard
Chinese
reference
standard,
subjects
were
divided
into
three
groups,
"lean"
B1,
"normal"
B2
"overweight"
B3,
measured
by
non-invasive
instrumental
methods,
microbiota
was
analyzed
16S
rRNA
ITS
high-throughput
sequencing.
Results:
Compared
with
normal
group,
those
overweight
group
exhibited
a
significant
increase
trans-epidermal
water
loss
(TEWL),
which
indicated
that
barrier
impaired.
The
haemoglobin
content
significantly
increased,
surface
pH
decreased
high
BMI.
Furthermore,
α-diversity,
analysed
using
Shannon,
Chao,
Sobs,
Ace
indexes,
increased
suggesting
diversity
species
abundance
bacterial
fungal
also
increased.
Moreover,
had
higher
abundances
Streptococcus,
Corynebacterium,
Malassezia
,
Candida
.
Notably,
negatively
correlated
relative
Malassezia,
Cladosporium
Besides,
positively
associated
Staphylococcus
Corynebacterium
Conclusion:
These
results
indicate
differences
biophysical
properties
skin.
A
affects
integrity
changes
flora
composition.
Keywords:
index,
microbiome,
pH,
Clinical Cosmetic and Investigational Dermatology,
Journal Year:
2023,
Volume and Issue:
Volume 16, P. 325 - 337
Published: Feb. 1, 2023
Everyone
pursues
perfect
skin,
but
there
exist
significant
differences
between
cultures,
and
no
commonly
accepted
standards
have
been
established.
Therefore,
our
study
attempted
to
define
the
"ideal
skin"
of
oriental
women
analyze
relationship
different
skin
physiological
parameters
microbiomes.Based
on
customized
grading
standard,
VISIA
CR
photos
111
young
aged
from
18
25
in
Shanghai
were
collected
scored
by
severity
pores,
acne,
spots,
wrinkles.
The
volunteers
then
divided
into
(W1),
"normal
(W2),
"undesirable
(W3)
groups.
facial
measured
non-invasive
instrumental
methods,
microbiome
was
analyzed
16S
rRNA
ITS
high-throughput
sequencing.From
skin",
parameters,
α-diversity,
composition
showed
noticeable
regular
changes.
Compared
with
(W2)
(W3),
(W1)
group
had
lower
sebum
content,
TEWL,
melanin,
hemoglobin,
roughness
higher
hydration
content
pH
value.
Furthermore,
Shannon
index
bacteria
significantly
increased
W1
(P
=
0.004),
suggesting
that
ideal
species
diversity.
From
W3,
changed
significantly.
abundance
Actinobacteria
increased,
while
Proteobacteria
Bacteroidetes
decreased.
Correspondingly,
abundances
lipophilic
Propionibacterium
Malassezia
Stenotrophomonas,
Pseudomonas,
Ralstonia,
Streptococcus,
Additionally,
Spearman
correlation
analysis
revealed
strong
correlations
microbiota.
Notably,
positively
correlated
0.03)
negatively
Cutibacterium
0.000),
hemoglobin
0.025),
0.5).
played
an
important
role
maintaining
α-diversity
homeostasis.Ideal
better
water-oil
balance
barrier
function,
microbial
diversity,
more
reasonable
distribution.
daily
skincare
needs
control
oil
maintain
microecological
achieve
conditions
for
18-25
years
old.
International Journal of Cosmetic Science,
Journal Year:
2024,
Volume and Issue:
46(4), P. 566 - 577
Published: Aug. 1, 2024
Abstract
Introduction
Stratum
corneum
(SC)
is
essential
for
skin
barrier
function,
mitigating
water
loss
and
shielding
against
potentially
harmful
substances
allergens.
The
SC's
lipid
matrix,
arranged
in
a
lamellar
structure,
integral
to
its
protective
role.
Our
study
explores
the
restoration
effects
of
multilamellar
cream
with
an
acidic
pH
compared
basic
placebo
on
physiology
interaction
microbiome
after
stress
induction
via
tape
stripping
(TS).
Materials
Methods
In
this
double‐blind
study,
14
healthy
participants
aged
21–58
years
were
assessed
pre‐
post‐tape
stripping,
followed
by
days
application
test
evaluations
7,
17
sustained
effects.
Skin
was
analysed
terms
epidermal
SC
hydration
surface
pH.
16S
rRNA
amplicon
sequencing
gene
using
Illumina
MiSeq,
subsequent
species
identification.
Results
showed
significant
improvements
repair
verum,
particularly
application,
while
both
creams
initially
enhanced
stratum
hydration.
No
changes
surface‐pH
detected.
analysis
revealed
that
TS
slightly
decreased
alpha
diversity,
trend
verum
significantly
reversed,
enhancing
diversity
beyond
baseline
levels
days.
Overall,
contributed
broader
microbial
phyla
over
time,
no
abundance
specific
genera
or
noted
between
treatments.
Discussion
Conclusion
delineates
efficacy
pH‐optimized
recovery
post‐sequential
TS,
contrast
unstructured
placebo.
Verum
improved
function
at
day
14,
evident
treatment
period.
Furthermore,
formulation
facilitated
restitution
cutaneous
key
indicator
ecology,
underscoring
symbiotic
relationship
integrity
composition.
These
findings
underscore
importance
emollient
structures
dermatological
therapeutics,
potential
implications
design
advanced
skincare
interventions
holistically
support
resilience
homeostasis.
International Journal of Cosmetic Science,
Journal Year:
2024,
Volume and Issue:
47(1), P. 123 - 133
Published: Sept. 1, 2024
Skin
health
is
impacted
by
a
wide
range
of
intrinsic
and
extrinsic
factors
(J
Dermatol
Sci,
2017,
85,
152),
including
those
that
impact
circadian
rhythm,
such
as
sleep
disruption
(Textbook
Aging
Skin,
2016),
UV
(Biomed
Pathol,
2013,
3,
161)
blue
light
(Int
J
Cosmet
2019,
41,
558).
Disruption
the
skin's
endogenous
balance,
even
consistently
late
bedtime,
has
deleterious
effects
on
multiple
measurements
skin
health,
hydration,
barrier
protection,
microbiome
counts
regeneration,
among
others
(Clin
Investig
Dermatol,
2022,
15,
1051).
repair
processes
occur
at
night
help
to
maintain
important
aspects
(FEBS
Lett,
2021,
595,
2413).
Interest
increasing
in
development
topical
products
restore
proper
function.
This
study
demonstrates
proprietary
formulation
regulates
new
established
gene
protein
biomarkers
entrainment
demonstrating
product's
potential
appropriate
dermal
diurnal
balance.
Journal of Cosmetic Dermatology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 9, 2024
ABSTRACT
Background
Recently,
numerous
topical
products
containing
plant‐based
ingredients
have
been
reported
to
resist
skin
aging.
However,
there
is
a
lack
of
sufficient
evidence
substantiate
these
claims.
This
paper
presents
comprehensive
review
and
meta‐analysis
evaluate
the
efficacy
safety
plants
or
plant
extracts
in
anti‐aging.
Methods
Four
databases—PubMed,
Embase,
Web
Science,
Cochrane
Library
(CENTRAL)—were
systematically
searched
for
articles
related
interventions
aging,
covering
period
from
January
2000
December
2024.
A
total
eight
randomized
controlled
trials
(RCTs)
met
inclusion
criteria
were
included
meta‐analysis.
Results
Products
demonstrated
statistically
significant
difference
improving
hydration
elasticity,
reducing
melanin
erythema
compared
other
products.
No
statistical
was
observed
transepidermal
water
loss
(TEWL).
Subgroup
analysis
revealed
improvement
overall
elasticity
(R2)
during
short‐term
(≤
8
weeks)treatments,
while
no
long‐term
(>
weeks)treatments.
Additionally,
specific
measurements
including
R5
(net
elasticity)
R7
(the
ratio
elastic
recovery
deformation).
Regarding
safety,
adverse
events
six
studies,
remaining
two
studies
did
not
specify
whether
occurred.
Conclusion
The
results
indicated
that
botanical
preparations
significantly
enhanced
hydration,
reduced
levels
erythema,
increased
elasticity.
provide
support
reduction
(TEWL),
improvements
Systematic
Review
Registration
PROSPERO
(york.ac.uk)
identifier:
CRD42023478803
BMC Women s Health,
Journal Year:
2023,
Volume and Issue:
23(1)
Published: May 31, 2023
Abstract
Background
The
regularity
of
the
menstrual
cycle
directly
affects
women’s
health.
Many
studies
have
focused
on
health;
however,
regularity-related
variations
in
skin
physiological
characteristics
and
microbiota
been
seldom
investigated.
Methods
To
investigate
197
cases
Chinese
women
aged
18–35
years
living
shanghai
2021.
Based
a
self-evaluation
questionnaire,
volunteers
were
divided
into
three
groups
C1
(those
with
regular
cycle),
C2
less
cycle)
C3
an
irregular
cycle).
parameters
facial
measured
by
non-invasive
methods
microbiome
was
analyzed
16S
rRNA
high-throughput
sequencing.
Results
In
group,
hydration
content
significantly
decreased
(
p
<
0.05),
TEWL
increased
sebum
>
indicating
that
barrier
integrity
weakened
irregularity.
Additionally,
melanin
level,
L
value
b
0.05)
but
0.001),
which
indicated
color
became
darker.
Furthermore,
diversity
increasing
irregularity,
differences
not
significant.
composition
showed
proportion
Firmicutes,
Acinetobacter,
Staphylococcus
Cutibacterium
those
cycle,
alterations
ratio
bacterial
phyla
and/or
genera
might
disturb
homeostasis.
Spearman
correlation
analysis
revealed
strong
correlations
between
parameters.
associations
among
hormones,
microbiota,
it
is
possible
parameters,
as
well
microbial
composition,
change
hormonal
fluctuations
during
cycle.
Conclusions
An
can
affect
microbiota.
Female
should
strengthen
care
practices
use
products
moisturising
soothing
effects
to
protect
their
skin.
Advances in Dermatology and Allergology,
Journal Year:
2023,
Volume and Issue:
40(6), P. 757 - 761
Published: Jan. 1, 2023
Concerns
are
growing
in
the
aviation
industry
about
occupational
skin
diseases
like
malignant
melanoma
(MM)
among
airline
pilots
(APs),
due
to
unique
working
environment
that
exposes
them
various
stressors.