None listed
Conditions
Interventions
Apply moisturizer skin care products to the face twice a day for 4wks.
Apply placebo to the face twice a day for 4wks.
Apply placebo to the face twice a day for 4wks.
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Japanese women between 20 and 59 years old. 2. Those who usually use lotion at least 4 days a week. 3. Those whose awareness of facial skin sensitivity is "sensitive" or "somewhat sensitive" out of four levels: "sensitive," "somewhat sensitive," "somewhat not sensitive," or "not sensitive. 4. Those who experience dryness symptoms on the face at least one day a week. 5. Those who have sensitivity symptoms (redness, itching, stinging, tingling, burning) on the face at least one day per week. 6. Those who feel/have felt irritation such as tingling or burning on the face using cosmetics at least one day a week.
Exclusion criteria
Exclusion criteria: 1.Those who are pregnant or may be pregnant, breastfeeding, or less than 6 months postpartum 2.Those who have participated in other studies (all studies using cosmetics, food, pharmaceuticals, quasi-drugs, medical devices, etc.) within the past 4 weeks, or those who have participated in other human studies during the scheduled implementation period of this study. Those who are planning to participate. 3.Those with skin symptoms such as atopic dermatitis or contact dermatitis. 4.Those with a history of allergies or rashes to cosmetics, adhesive tapes, medical tapes, etc. 5.Those with facial skin abnormalities (rash, eczema, wounds, bruises, etc.). 6.Those who have had severe sunburn on their face within the past month 7.Those who are visiting a medical institution due to poor physical condition or skin disease. 8.Those using cosmetics, quasi-drugs, or pharmaceuticals that may affect the test (peels, steroids, anti-inflammatory drugs, topical drugs, antibacterial drugs, etc.). 9.Those with seasonal allergies such as severe hay fever. 10.Those who have regular use of medications (including over-the-counter sleeping pills, anti-allergic medications, pain relievers, hormones, laxatives, intestinal preparations, antibiotics, and medications for other ailments) during the past 3 months. 11.Those who have received cosmetic treatment for the face (laser treatment, collagen injection, etc.). 12.Those who have had aesthetic treatment on their face within the past 1 month 13.Those who use home facial beauty devices or beauty equipment 14.Those who have a habit of smoking. 15.Persons involved in this study. 16.Those who are engaged in a related industry (such as the pharmaceutical industry, cosmetics industry, advertising magazine, etc.) 17.Those who are deemed unsuitable for research participation by the research director due to violation of compliance obligations, etc. 18.Those who use skin care products containing cetyl PG hydroxyethyl palmitamide
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Lactic acid sting test score values before and after 4 weeks of skin care product use | — |
Secondary
| Measure | Time frame |
|---|---|
| -Stratum corneum moisture content value -TEWL value -Neurometer value | — |
Countries
Japan
Contacts
Public ContactShiori Yoshikawa
Kao Corporation Skin Care Research Lab.
Outcome results
None listed