SKU: 32403145785

Azelaic Acid 12% Serum (30ml)

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Description

Azelaic Acid 12% Serum (30ml)TIRTIRs Azelaic Acid 12% Serum is a powerful yet gentle solution for acne, redness, and uneven skin tone, designed especially with oily, sensitive, and acne prone skin in mind. At the heart of this formula is a highly effective 12% concentration of Azelaic Acid, a multitasking hero naturally found in grains like rye and barley and also produced by the yeast present on healthy skin. Renowned for its unique ability to both calm and clarify, Azelaic Acid

TIRTIR’s Azelaic Acid 12% Serum is a powerful yet gentle solution for acne, redness, and uneven skin tone, designed especially with oily, sensitive, and acne-prone skin in mind. At the heart of this formula is a highly effective 12% concentration of Azelaic Acid, a multitasking hero naturally found in grains like rye and barley and also produced by the yeast present on healthy skin. Renowned for its unique ability to both calm and clarify, Azelaic Acid gently exfoliates away dead skin cells, unclogs congested pores, and smooths out bumpy or rough texture, while its antibacterial and anti-inflammatory properties directly target the causes of breakouts. Beyond tackling acne, it also helps to fade lingering dark spots and post-acne scarring by slowing down excess melanin production, revealing a brighter and more even-toned complexion over time.

The formula is strengthened with Zinc PCA, which regulates excess sebum to prevent clogged pores and shine, and Panthenol, a deeply soothing hydrator that promotes healing and delivers instant relief to irritated skin. To ensure lasting hydration and comfort, TIRTIR’s Hyal-Zip™ technology combines polymerised hyaluronic acid with a moisture-locking delivery system that restores skin’s hydration balance and reinforces the barrier against dryness. Meanwhile, Ceramide NP and Betaine nourish the skin, replenish essential moisture, and prevent tightness or flakiness often caused by acne treatments.

For maximum efficacy, TIRTIR employs its innovative FLEX-SOME™ technology, encapsulating active ingredients into ultra-fine particles that are 2,500 times smaller than pores, ensuring fast, deep absorption where it’s needed most. The result is visible improvement: in clinical trials, redness was reduced by an impressive 73.4%, outer skin hydration increased by 201.79%, and inner layer hydration improved by 10.52% immediately after use.* The serum has also been tested for non-comedogenicity, so you can trust that it won’t clog pores or worsen breakouts.

Lightweight and non-irritating, this serum glides onto the skin and absorbs seamlessly, making it an easy addition to any routine. With consistent use, it balances oily yet dehydrated skin, reduces redness, calms inflammation, and visibly diminishes stubborn blemishes and dark marks.

*According to results obtained in clinical trials conducted by Dermacosmetic Skin Science Research Centre Co., Ltd., between 3/2/2025 and 5/3/2025, involving 20 adult subjects between 20 and 59 years of age.

It’s Skin Cupid approved because…

… it harnesses a dermatologist-loved 12% Azelaic Acid concentration with advanced hydration and delivery technologies, offering breakout care, redness reduction, and brightening in one gentle yet highly effective formula.

At a glance:

  • Best suits oily and acne-prone skin
  • Alleviates and helps heal breakouts
  • Soothes redness and irritation
  • Fades acne scars
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SKU: 32403145785

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James Carlstedt
Houston, US
★★★★★ 5
great read for underwriters of multifamily deals
Format: Kindle
Rob lays out a succinct and thorough summary of his underwriting process, questions industry standards while sharing his opinions, and discusses risk management and analyses for deals during the underwriting process. Highly recommend for newer and more seasoned underwriters and investors to build or sharpen multifamily underwriting fundamentals and details. He also shares his model as the example.
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Reviewed in the United States on September 27, 2023
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LongBoarder
Fort Morgan, US
★★★★★ 3
Needs more meat
Format: Paperback
A little on the light side of information provided. Some nuggets. OK value.
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Reviewed in the United States on December 16, 2022
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Matthew Sinn
San Leandro, US
★★★★★ 5
Full of useful information
Format: Paperback
As context, I've underwritten about 100 deals and attended some basic underwriting classes. Rob's book was very useful to me, both in helping me gain better skills in underwriting basics (stabilization time period and how unit renovations and rent bumps are modeled/phased-in as well as when to start applying rent escalator) as well as higher level topics, like partnership structures, sensitivity analyses, and judging the returns. In all of these higher level topics I learned several new topics (and calculations to add to my underwriting) and would guess that even experienced investors would pick up a few quality nuggets in these sections.
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Reviewed in the United States on May 27, 2020
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NegativeG
Chelsea, US
★★★★★ 5
A Grounding, Practical, and Surprisingly Reassuring Guide for the Modern College Search
Format: Hardcover
Our family absolutely loves this book, having followed Jeff for many years, purchasing this was an easy choice. We’ve been deep in the college search process for a while now, and like many families, we spent a lot of time trying to balance ambition, fit, finances, outcomes, and the emotional side of it all. “Dream School” was one of the few resources that actually helped us calm down and make clearer decisions. What stood out most is how realistic and grounded the book is. You'll keep wanting to go to the end to look at the list of schools, but read the book. It doesn’t push prestige for the sake of prestige, and it doesn’t pretend that college admissions follow a straight line. Instead, it helps you think honestly about what a “right fit” really means...academically, socially, financially, and emotionally. For our family, this gave us a framework to rationalize all the moving pieces rather than chasing names or getting overwhelmed by noise from online forums and comparison culture. As we evaluated schools across different regions, majors, sizes, and price points, this book helped us step back and ask the right questions. It pushed us to think about values and outcomes instead of just rankings. It helped us understand why certain schools felt like better matches, even if they weren’t the ones everyone talks about on social media. Most importantly, it gave us permission to stop second-guessing ourselves and to trust the process we built together. Anyone going through the modern admissions process knows it can become emotionally exhausting, with hyper-competitive acceptance rates, endless online commentary, and constant chats with ChatGPT, which tells me what I want to hear rather than the truth. This book eased a lot of that stress. It helped our family see the big picture, prioritize what truly matters, and make decisions with confidence rather than fear of missing out. If you’re a parent or student trying to navigate the college search in a thoughtful, balanced way, I can’t recommend “Dream School” enough. It doesn’t just help you find the right college, it helps you remember why you’re doing this in the first place.
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Reviewed in the United States on December 6, 2025
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Tracy Y.
San Leandro, US
★★★★★ 5
Parents of HS Students: READ THIS BOOK!
Format: Hardcover
A must-read book for parents navigating the "IVY OR BUST" aspirations of all top-performing high school students. Families simply can not afford the near-100K/year tuition for these institutions. It's unsustainable, and adding soul-crushing debt (before a career is even begun!) is not what parents want for our students. Enter Dream School: a guide to finding YOUR student's opportunity (and less expensive education) amid the noise and rah-rah of aggressive college recruiting. The book is a fast, comprehensive read which gives parents guidance and "permission" to consider schools with less name recognition/lower cost, but with high performance teaching and reasonable return on investment (ROI.) Remember the goal: a college degree for a happy, fulfilled student ready to enter the job market or grad school.
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Reviewed in the United States on September 12, 2025

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