化粧下地は本当に不要なのか。化粧品の専門家に否定されてしまいました…。「下地いらない説」の真相を深掘り

This is a collaboration between Tomato Village Mayor, a former cosmetics researcher, and Daisuke Mitsui, a current cosmetics developer! Tomato Village Mayor seriously disputes the "makeup primer is pointless" theory, which has been viewed over 60,000 times. (Original video:    • 【必見】化粧下地をやめたらベースメイクは成功します。現役の化粧品開発者がわかりやすく解説  ) Daytime serum, highly moisturizing primer, makeup-staining primer... We thoroughly examine whether these are truly necessary from both the developer's and consumer's perspectives. ▶ Tomato Village Mayor's channel:    / @tomato4researcher   We've also filmed a collaboration video, so be sure to check it out: [What only a cosmetics developer knows! Secrets to Preventing Skin Irritation:    • 化粧品開発者だからこそ知る!肌荒れ予防の極意   --- [What You'll Learn in This Video] Why Tone-Up Primer and Foundation are Difficult → Inconsistencies in Application Amount, Not Color, Can Thwart Your Finish The Structure of a Smudge-Resistant Primer and a Moisturizing Foundation → Layering Your Makeup, Thought to Be Good, Can Have the Opposite Effect Are Daytime Serums Really Cost-Effective? → A Critical Judgment Based on the Design of the Product The Idea that Primer Is a "Fine-Tune" Role, Not the Main Role → Simplifying Your Base Makeup in an Instant It's Not a Question of Whether to Stop or Continue, but "How to Use It" → Specific makeup organization tips you can try starting tomorrow The original video arguing that makeup primers are unnecessary is here →    • 【必見】化粧下地をやめたらベースメイクは成功します。現役の化粧品開発者がわかりやすく解説   ------------------ Table of Contents (Start with the part that interests you) (00:00) An expert disputes the 50,000-view "no primer needed" theory (01:22) Should you layer a tone-up primer? The surprising reason why your color might look dull (03:30) Doesn't the brand set a specific amount? The ambiguity of "recommended amount" (05:48) A blind spot no one considers when choosing foundation (06:53) Is a daytime serum necessary? A Real Rebuttal from Those with Dry Skin (09:16) Are High-Price Primers Really Bad Value? (14:52) Primavista's Smudge-Resistant Mechanism and Pitfalls (15:55) Why Smudge-Resistant and Moisturizing Foundations Don't Work Well Together (17:04) Primers Are a Supporting Role. How to Enhance Your Foundation's Look (20:16) The Real Reason Full-Face Foundations Are So Easy to Break Down --- I'm not trying to slam primers. I just want you to try one out. You'll probably think about your base makeup differently. And if you do use one, use it for a specific purpose. Think before you apply it. Just doing that will make your base makeup surprisingly easy to manage. If you're not satisfied with your current finish, this discussion will surely give you some ideas. If you have any questions about this video, feel free to leave a comment. I'll be sure to reply. This channel carefully addresses users' concerns and questions about skin and cosmetics from the perspective of a cosmetics developer. Simply subscribe to the channel to learn about "how to properly use and choose makeup and sunscreen" and "theories for maximizing their effectiveness." ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼ Mitsui Daisuke is a cosmetics developer who scientifically explains cosmetics. This channel carefully addresses users' concerns and questions about skin and cosmetics from the perspective of a cosmetics developer. Simply subscribe to the channel to learn about "how to properly use and choose makeup and sunscreen" and "theories for maximizing their effectiveness." We aim to create a world where users can solve their own skin and cosmetic concerns. We will share information that you won't find in searches and that cosmetics manufacturers can't say, so please subscribe. You'll be able to access information you can't find anywhere else. Let's study together to fully realize the potential of cosmetics. ☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆ Mitsui Daisuke @ Cosmetics Developer Social Media Accounts Twitter Account:   / mitsui_daisuke3   (110,000 followers) Instagram Account:   / mitsui_daisuke3   (15,000 followers) Subscribe to my YouTube channel here↓    / @mitsui_daisuke   ☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆

Stop doing this immediately if your foundation looks patchy: Skincare mistakes to avoid, accordin...
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Stop doing this immediately if your foundation looks patchy: Skincare mistakes to avoid, accordin...

【嘘と闇の業界】「傷が目立たない」広告の嘘!包茎手術を失敗された人が声を上げられない包茎手術の闇 | 包茎増大手術の医師解説 福岡 鹿児島 メンズセイコメディカルクリニック
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【嘘と闇の業界】「傷が目立たない」広告の嘘!包茎手術を失敗された人が声を上げられない包茎手術の闇 | 包茎増大手術の医師解説 福岡 鹿児島 メンズセイコメディカルクリニック

I'm Finally Using The Makeup I Already Own... *10 more products* | Project Pan 2026
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I'm Finally Using The Makeup I Already Own... *10 more products* | Project Pan 2026

【安くて効果がある化粧品の選び方】現役の化粧品開発者がわかりやすく解説
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【安くて効果がある化粧品の選び方】現役の化粧品開発者がわかりやすく解説

Talkin’ Trash | Beauty Empties & Honest Reviews #5
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Talkin’ Trash | Beauty Empties & Honest Reviews #5

We will explain the reasons why makeup base ruins foundation by function.
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We will explain the reasons why makeup base ruins foundation by function.

[Change the way you think about base makeup!?] Foundation begins with skincare. A current cosmeti...
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[Change the way you think about base makeup!?] Foundation begins with skincare. A current cosmeti...

【砂糖の問題】私が砂糖依存から抜けた方法
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【砂糖の問題】私が砂糖依存から抜けた方法

Many people are seeing their skin problems heal after switching to "zinc oxide-free" products. We...
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Many people are seeing their skin problems heal after switching to "zinc oxide-free" products. We...

保湿リップを塗っても皮向けが止まらない理由、実は「保湿の方法」にありました。化粧品開発者が徹底解説!
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保湿リップを塗っても皮向けが止まらない理由、実は「保湿の方法」にありました。化粧品開発者が徹底解説!

"The sparkly, cute glitter was unexpectedly the cause of skin irritation," says a current develop...
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"The sparkly, cute glitter was unexpectedly the cause of skin irritation," says a current develop...

I'm a Korean Doctor. STOP Using These 8 K-beauty Products.
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I'm a Korean Doctor. STOP Using These 8 K-beauty Products.

【ナイトパウダーの底力!】寝る前に粉を塗るスキンケアの意味を、現役の化粧品開発者がわかりやすく解説
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【ナイトパウダーの底力!】寝る前に粉を塗るスキンケアの意味を、現役の化粧品開発者がわかりやすく解説

[In the end, this is it] My top 5 BB creams and no-foundation primers after testing over 30 diffe...
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[In the end, this is it] My top 5 BB creams and no-foundation primers after testing over 30 diffe...

【ベスコス2025プチプラTOP10】化粧品のプロが選ぶ!僕らの旅を終わらせたこれだけで完結の神作プチプラコスメ大賞を発表します【全部2000円以下】
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【ベスコス2025プチプラTOP10】化粧品のプロが選ぶ!僕らの旅を終わらせたこれだけで完結の神作プチプラコスメ大賞を発表します【全部2000円以下】

A researcher with 20 years of experience in cosmetics development shares the top 3 beauty ingredi...
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A researcher with 20 years of experience in cosmetics development shares the top 3 beauty ingredi...

良かれと思ってやってない?乾燥肌を一生治さなくさせる「NG保湿」の正体
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良かれと思ってやってない?乾燥肌を一生治さなくさせる「NG保湿」の正体

【鬼のようにバズってた日焼け止めが微妙でした…】現役の化粧品開発者がわかりやすく解説
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【鬼のようにバズってた日焼け止めが微妙でした…】現役の化粧品開発者がわかりやすく解説

【日焼け止めの真実】50種類以上の製品を比較した結果、もっとも焼けない日焼け止めを、しゅうくんと議論してみた。
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【日焼け止めの真実】50種類以上の製品を比較した結果、もっとも焼けない日焼け止めを、しゅうくんと議論してみた。

Is Australian Sunscreen ACTUALLY stronger than Asian Sunscreen? I put them to the test!
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Is Australian Sunscreen ACTUALLY stronger than Asian Sunscreen? I put them to the test!