Efficacy and Tolerance Evaluation of an Anti-age Food Supplement: a Randomized, Controlled Clinical Study Versus Untreated Group
Aim of the study was to evaluate the anti-age activity of "Pre-Hyaluron 465 Innēov" a food supplement, composed with a precursor of HA (glucosamine) and an enzymatic co-factor of HA synthesis (manganese), taken for 4 consecutive months by female subjects aged 35-60 years (with preference for subjects over 45 years), with moderate-severe skin aging/photoaging according to a reference photographic scale. The study foresaw the evaluation of the study product activity versus a control group, untreated.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
66
Food supplement consisting og a tablet and a capsule, composed with a precursor of HA (glucosamine) and an enzymatic co-factor of HA synthesis (manganese)
Crow's feet visual score variation
Wrinkles grade was determined according to l'Oreal clinical standardized photographic scales
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Nasolabial folds visual score variation
Wrinkles grade was determined according to l'Oreal clinical standardized photographic scales
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Surface microrelief regularity evaluation
Regularity grade was evaluated according to this score: 1. = very regular 2. = regular 3. = irregular 4. = very irregular
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Skin resistance to pinching clinical score variation
The evaluation was performed at level of cheek (malar region) according to the following score: 0 = very important 1. = important 2. = moderate 3. = weak 4. = very weak
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Skin resistance to traction clinical score variation
The evaluation was performed at level of cheek (malar region) according to the following score: 0 = very important 1. = important 2. = moderate 3. = weak 4. = very weak
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Skin recovery after pinching clinical score variation
The evaluation was performed at level of cheek (malar region) according to the following score: 0 = very important 1. = important 2. = moderate 3. = weak 4. = very weak
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
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Skin dryness clinical score variation
Clinical evaluation of skin dryness was performed according to the following score: 0 = very hydrated skin 1. = hydrated skin 2. = normal skin 3. = kindly dry skin 4. = dry skin 5. = very dry skin
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Vascular homogeneity clinical score variation
Homogeneity grade was determined according to specific reference clinical and photographic scales and to the following clinical score: 0 = very homogeneous 1. = homogeneous 2. = quite not homogeneous 3. = not homogeneous 4. = very not homogeneous 5. = marked not homogeneous
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Pigmentary homogeneity clinical score variation
Homogeneity grade was determined according to specific reference clinical and photographic scales and to the following clinical score: 0 = very homogeneous 1. = homogeneous 2. = quite not homogeneous 3. = not homogeneous 4. = very not homogeneous 5. = marked not homogeneous
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Skin radiance clinical score variation
Skin radiance was evaluated using a 10 points scale from very poor to good
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Skin plumpness clinical score variation
Skin plumpness was evaluated using a 10 points scale from very poor to good
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Superficial skin hydration
Skin electrical capacitance value measured with Corneometer CM825 (Courage - Khazaka, Köln, Germany). The measure of the skin capacitance properties is an indirect expression of its hydration level.
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Deep skin hydration
Tissue dielectric constant value of superficial and deep skin layers measured with MoistureMeterD (Delfin Technologies, Kuopio - Finland)
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Determination of roughness profilometric parameters
Nasolabial folds profilometric parameters measured by Primos compact portable device (GFMesstechnik). Ra is average roughness of the analysed profile, Rt is wrinkles total high, Rv is wrinkles maximum depth.
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)
Tolerance evaluation
The food supplement tolerance will be evaluated considering: any adverse event related to the study treatment, which occurred during the study; any judgement reported by the volunteers.
Time frame: Basal visit (T0), 1 month (T1), 2 months (T2), 3 months (T3), 4 months (T4), 5 months (T5)