かずのすけ
23:11melnee "Melting Needle" Skincare That Overcomes the Pain Problem: Ingredient Design and Performance
"Needle cosmetics," which blend microscopic needles into serums and creams to deliver ingredients into the stratum corneum, are spreading worldwide. However, concerns about intense pain during use and
29:26CeraLabo "Petit Bottle Series": Features and Uses of All 7 Products
CeraLabo, the skincare brand produced by Kazunosuke, has launched the "Petit Bottle Series" (20 ml each / ¥600–¥800 tax included), which lets you easily try seven of its popular staple items. The vide
27:43Rohto Pharmaceutical's Obagi C Serum Renewal Explained: A New Approach to Boosting Intracellular Vitamin C Uptake and How to Choose Among the Concentrations
Rohto Pharmaceutical's flagship vitamin C serum line, the Obagi C Serum series, has undergone a complete renewal. Drawing on an explanation by cosmetic chemist Kazunosuke, this article takes a detaile
22:25Testing How the Application Order of Sunscreen and Makeup Primer Affects UV Protection
To get to the bottom of a rumor that went viral on social media, "applying primer after sunscreen lowers the SPF," cosmetic chemist Kazunosuke ran experiments with a UV meter, testing a variety of pro
29:48The "Ceramide Deficiency" Cause of Atopic Dermatitis Demonstrated, and 7 Curel Picks from the Drugstore
Utsunomiya University has issued a research release stating that it has "demonstrated for the first time in the world that ceramide deficiency in the skin is a direct cause of atopic dermatitis." It h
18:47Formulation Design and Performance Testing of "Silk Aura," a New-Generation Hair Care Line with a High Concentration of Silk PPT
In the mass-market hair care segment sold at drugstores and similar outlets, how far salon-exclusive levels of repair can be achieved at a low price has long been a matter of debate. Against this back
21:27Kao × AEON "Biore Kids Stamp UV": Ingredient Analysis and Features
Beauty chemist Kazunosuke explains the ingredient highlights of "Biore Kids Stamp UV," a children's sunscreen co-developed by Kao and AEON Retail, and compares it with existing products.
23:51MUJI's New Sunscreens: A Thorough Breakdown
Cosmetic chemist Kazunosuke gives a detailed review of the ingredients and feel of three new types of sunscreen (four products) newly released by MUJI.
28:13Yakult Cosmetics' "Lactdew" and Sunscreen: Ingredients and How They Feel
Taking as its starting point the Yakult Swallows players whose clear skin became a topic of conversation, the video explains the ingredients and feel of Yakult's skincare products "Lactdew" and "Outdo
29:23unlabel LAB "Super High-Pressure Penetration Essence": Ingredient Analysis and Practicality After a Major Renewal
The "Super High-Pressure Penetration Essence" series, the flagship line of JPSLAB's skincare brand unlabel LAB, has undergone a large-scale renewal. Although the packaging design has not changed signi
24:12[Omi Brotherhood] Explaining Verdio's New "Medicated UV Series"
The "Verdio Medicated UV Gel Milk" and "Verdio Medicated UV Milk" from Omi Brotherhood are the season's most talked-about affordable sunscreens, combining strong UV protection with skincare benefits.
19:17Kao's "THE ANSWER" Launches a New Spring/Summer Line: The Ingredients and Design of "Seasonal Care SS," Built to Tackle Frizz and Puffiness in High Humidity
Kao's hair care brand "THE ANSWER," developed by drawing on the company's 100 years of hair care research, has launched a new series, "Seasonal Care SS," aimed specifically at the hair concerns that c
29:23Kazunosuke & Misato Mizukoshi Pick Their "5 Holy Grail Skincare Products"
Cosmetic chemist Kazunosuke and hugely popular creator Misato Mizukoshi team up for the first time. Kazunosuke, who approaches products from a sensitive-skin perspective, and Mizukoshi, who prioritize
21:07The "Two-Layer Method" for Both Pore Coverage and Shine Control: The Design and Use of CeraLabo's Two New Face Powders
CeraLabo, a skincare and cosmetics brand for sensitive skin, has released two new face powders: "Ceraneige Natural Fit Powder R" and "Ceraneige Natural Reflector."
20:56Chacott Glass Veil Cushion Foundation Explained
This is a summary of a video that explains the "Chacott Glass Veil Cushion Foundation" in detail, covering its ingredient features, how it compares with other popular cushion foundations, how it feels
17:40A Breakdown of the Ingredients and an In-Depth Review of LUX Super Rich Crystal
Cosmetic chemist Kazunosuke explains in detail the ingredient profile and feel of the "Super Rich Crystal Moisture & Repair Series," newly released in March 2024 by the hugely popular budget hair care
26:47Analyzing the Glycerin-Free Acne Care Serum from Moisture Mild White
KOSÉ Cosmeport has released the "Acne Care Perfect Essence," a product focused on acne and pore care, as part of its "Moisture Mild White" series. The series previously drew attention with a low-cost
17:58A Complete Guide to Cezanne's New "Serum Cushion Foundation"
Cezanne's hugely popular cushion foundation has been revamped and relaunched as the "Serum Cushion Foundation." Cosmetic chemist Kazunosuke breaks down the ingredients and features of this product, wh