Soybean-fragmented proteoglycans against skin aging.
OBJECTIVE
The majority of age-dependent skin changes happen in the dermis layer inducing changes in skin collagen and in the proteoglycans. The main aim of this work is to study the efficacy of a Proteum serum, containing soybean-fragmented proteoglycans, against skin aging.


METHODS
In vitro tests were performed to evaluate the Proteum serum ability on activating the production of collagen and proteoglycans. An in vivo long-term study was performed to determine the efficacy of the Proteum serum when applied on skin. Protection of healthy skin against detergent-induced dermatitis and the antioxidant properties of the applied Proteum serum were also studied.


CONCLUSIONS
The in vitro tests demonstrated that the Proteum serum was able to elevate the production of molecules which are essential for supporting the dermal extracellular matrix organization. These results were correlated by the in vivo measurements where a clear trend on improving the measured skin parameters due to the Proteum serum application was found.


CONCLUSIONS
A beneficial effect of the Proteum serum was demonstrated with an improvement in the skin roughness and a reinforcement of the skin barrier function. Moreover, a significant protector effect on human stratum corneum against lipids peroxides (LPO) was demonstrated.
a Department of Chemical and Surfactants Technology , Instituto de Química Avanzada de Cataluña , Barcelona , Spain.
Clara
http://orcid.org/0000-0002-3084-2925
C
Barba
a Department of Chemical and Surfactants Technology , Instituto de Química Avanzada de Cataluña , Barcelona , Spain.
Cristina
C
Alonso
b Hospital Universitario de Getafe, Banco de Tejidos , Getafe , Spain.
Isabel
I
Sánchez
c Laboratorios Martiderm , Barcelona , Spain.
Elisa
E
Suñer
c Laboratorios Martiderm , Barcelona , Spain.
L C
LC
Sáez-Martín
a Department of Chemical and Surfactants Technology , Instituto de Química Avanzada de Cataluña , Barcelona , Spain.
Luisa
L
Coderch
D000279:Administration, Cutaneous; D003094:Collagen / Q000378:metabolism*; D004817:Epidermis / Q000187:drug effects*; D006801:Humans; D011509:Proteoglycans / Q000008:administration & dosage* / Q000378:metabolism; D012867:Skin / Q000378:metabolism; D012869:Skin Absorption / Q000187:drug effects; D015595:Skin Aging / Q000187:drug effects*
D011509:Proteoglycans; D003094:Collagen
Antioxidant; proteoglycans; skin barrier; skin physiology; skin structure