Tolerability and efficacy assessment of an oral collagen supplement for the improvement of biophysical and ultrasonographic parameters of skin in middle eastern consumers

Abstract

Background Topical skin care products often do not reach the deeper layers of the skin, and oral hydrolyzed collagen is one of the newest and most popular systemic supplementations for skin rejuvenation. However, there are limited information in case of Middle Eastern consumers Objective The purpose of this study was to evaluate the tolerability and efficacy of an oral collagen supplement for improvement of skin elasticity, hydration, and roughness in Middle Eastern consumers. Methods and Materials It was a 12‐week, before‐after clinical study, conducted on 20 participants (18 women and 2 men) aged 44.15 ± 5.36 years with skin type III–IV. Skin elasticity parameters (R0, R2, R5, and R7), skin hydration and friction, as well as the thickness and echo density of the dermis, were measured after six and 12 weeks daily intake of the study product, as well as 4 weeks after stopping its use (week 16). Participants' satisfaction was assessed on the basis of their answers to the standard questionnaire, and tolerability of the product was assessed by monitoring the adverse effects. Results A significant improvement was detected in R2, R5, and skin friction at week 12 (p‐values 0.041, 0.012 and <0.01, respectively). At week 16, the values remained at an increased level, which indicates the persistence of the results. The increase of dermis density in week 16 was also significant (p‐value = 0.03). Moderate overall satisfaction was reported with the treatment, and a few gastrointestinal complications were reported. Conclusion The study demonstrated that oral collagen peptides could significantly improve the skin elasticity, roughness, and dermis echo density, and they also proved to be safe and well‐tolerated.

Correlating facial skin parameters with age and gender in population of Shaanxi Province, China

“…The question of these two anomalies is not explained and requires further follow‐up to call subjects for testing and conclusions. Some researchers have found that skin firmness is constant, independent of age 21 . R2, R5, and R7 did not show a purely linear relationship (Figure 1), but there was a significant moderate correlation with age (Figure 2).…”

Is oral collagen the elixir of youth?

“…Also, as shown in figure 2 in Ref. 1 of the article, it seems that the questions were ratherleadinginnaturewhichcouldtipresponsestowardspossible exaggerationaswell.…”

“…Dear Dr. Gold, Ihavereadthearticle"Tolerability and efficacy assessment of an oral collagen supplement for the improvement of biophysical and ultrasonographic parameters of skin in middle eastern consumers" 1 Finally, as shown by the figures in the study, participant satisfactionwasmeasuredatsetintervals,thatis,after6and12 weeks ofintake,aswellas4 weeksafterstoppingthetreatment(Week16) which raises the possibility of potential recall bias. Also, as shown in figure 2 in Ref.…”

A Clinical Trial Shows Improvement in Skin Collagen, Hydration, Elasticity, Wrinkles, Scalp, and Hair Condition following 12‐Week Oral Intake of a Supplement Containing Hydrolysed Collagen

“…The variability of doses, age range, number of weeks tested, and skin measures does little to support the robustness of the clinical reports. However, there is a general pattern suggesting that HC is efficacious as an antiaging treatment for women who use the supplement for up to 12 weeks [ 15 , 16 ]. The conclusion of these systematic reviews and meta-analysis is that HC supplementation can improve skin hydration, elasticity, and wrinkles.…”