Yuna Kang Knight · the K-beauty longevity ebook

My mother is sixty‑seven. People guess fifty‑two. This is everything she does.

No facelift, no filler, not one clinic laser. Just a warm towel at night, a cold one in the morning, and the same few steps every day. I spent years reading the research behind each one. This 379-page ebook is her routine, the science under it, and an honest rating for every technique and ingredient.

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Illustration from the ebook: a warm towel, a bowl of rice water and a wooden comb

1984

A tearoom in Pyeongtaek, near Osan Air Base. An Ohio mechanic orders “one warm sock, please.”

Where this comes from

My mother, Kang Mi-sook, was born in 1958 in Jeonju, South Korea. My father, James Knight from Dayton, Ohio, was an Air Force mechanic who walked into her tearoom on a dare to order in Korean. She laughed so hard she had to sit down. He came back the next day, and the next.

I grew up in Columbus watching her from the edge of the bathtub. She knelt by the tub so the water ran down and away. She warmed a damp towel in the microwave at night and froze the same towel in the morning, next to the peas. Every stroke went upward. Every morning, even in an Ohio January, sunscreen.

She learned most of it from her mother, my Halmeoni, Lee Bok-nam: rice water, ground mung beans, camellia oil combed through the hair. In my thirties I finally started looking it all up in the dermatology and physiology journals. Some of it turned out to be hard science. Some of it is pure tradition. The ebook tells you which is which.

“Pat. Never rub. Your face is not a kitchen table.”Umma, tapping my cheek

Chapter 11 · The three things that matter most

The towel is the ritual. These three do the work.

If you remember nothing else from the ebook, remember the habits with the strongest evidence behind them. Everything else, the towels, the stones, the cups, the rice water, is how you make these feel like a ritual instead of a chore.

Daily broad-spectrum sunscreen

In the Nambour trial, adults assigned to daily sunscreen showed no detectable increase in skin aging over four and a half years. Nothing else in the ebook has evidence that strong.

Strong

A retinoid at night

Once your skin can handle it. Decades of trials, from tretinoin for sun-damaged skin to retinol at 0.4%. Umma has used hers for ten years: “Cream, medicine, cream. Like kimbap.”

Strong

Gentle, consistent barrier care

A mild cleanser, lukewarm water, patting instead of rubbing, and a moisturizer with ceramides, cholesterol and fatty acids. The barrier is what lets you tolerate everything else.

Strong

“The towel is not the medicine. The towel is why I come to the bathroom. Then the sunscreen and the cream do the work.” — Umma

What's inside · 11 chapters · 379 pages

From the bathtub to the blood vessel.

Chapters 1 to 8 are rituals, each with numbered steps, timings, how it should feel and when to stop. Chapters 9 and 10 are the ingredient encyclopedia. Chapter 11 turns it into a plan you can keep.

1
Umma's Daily Ritual 엄마의 하루 의식
The bathtub wash, warm-then-cold towels, Korean layering thin to thick, sunscreen, and the tretinoin sandwich.
p. 15
2
Warmth 온기
What a warm towel does to your vessels second by second, heat shock proteins, and four warmth rituals.
p. 43
3
Cold 차가움
The towel next to the peas, the diving reflex, de-puffing, and the warm-cold contrast ritual.
p. 67
4
Pressure Points 혈자리 지압
A face and scalp point atlas, a seven-minute scalp jiap routine, and Korean hand therapy.
p. 92
5
Stone, Roller and Comb 돌, 롤러, 그리고 빗
Jade roller and gwalsa sequences, real jade versus dyed glass, the chambit comb, microneedling.
p. 121
6
Micro-Cupping 얼굴과 두피 부항
What suction actually does to skin, the full-face glide, and where never to cup.
p. 144
7
Light 빛
Red and near-infrared light, how to read the numbers on an LED mask box, and laser for thinning hair.
p. 168
8
Forgotten Rituals 잊혀진 의식
The Joseon mung-bean wash, second-rinse rice water, Dano hair washing and the hanbang pantry.
p. 189
9
Ingredient Encyclopedia I: Scalp and Hair 성분 백과 I
57 essential oils, CO₂ extracts, carrier oils and scalp actives, with a dilution table to memorize.
p. 213
10
Ingredient Encyclopedia II: Face 성분 백과 II
The retinoid ladder, PDRN, NAD⁺, peptides, vitamins and barrier lipids: 42 entries.
p. 283
11
Putting It All Together 모두 함께
Three levels from five minutes to the full Sunday treatment, routines by goal, and your first twelve weeks.
p. 321

Plus Find It By Goal (p. 335): look up wrinkles, puffiness, shedding or dandruff and see every ingredient that helps, with its rating and page. 39 illustrations, 55 Try It ritual cards, and every source listed.

The honest part

Every technique and ingredient gets one of four labels.

I promised myself I'd be honest about what works. “Traditional” isn't an insult. It just means enjoy it for what it is, and don't spend your rent money on it.

Strong

Several good human trials or a meta-analysis support it.

Moderate

Some human trials, with promising but limited results.

Early

Small pilot studies, or mostly lab and animal research so far.

Traditional

Long heritage of use, with little or no modern evidence yet.

Look inside

Real pages from the ebook

Illustrated step-by-step plates, ritual cards and the ingredient finder, exactly as they open on your phone or tablet. Click any page to read it full size.

Korean Rituals, page 61 — **Korean Rituals · p. 61** Umma's Warm Towel Press, step by step: microwave, shake, test on the wrist, press.

Korean Rituals, page 102 — **Korean Rituals · p. 102** The face points at a glance, from the point atlas in Chapter 4.

Korean Rituals, page 117 — **Korean Rituals · p. 117** The seven-minute scalp jiap, step by step, with its ritual card.

Korean Rituals, page 136 — **Korean Rituals · p. 136** The jade roller morning sequence: which direction, and why.

Korean Rituals, page 158 — **Korean Rituals · p. 158** The full-face glide for micro-cupping.

Korean Rituals, page 34 — **Korean Rituals · p. 34** How much sunscreen, really. The step everyone gets wrong.

Korean Rituals, page 290 — **Korean Rituals · p. 290** The retinoid ladder, from gentle esters to prescription tretinoin.

Korean Rituals, page 335 — **Korean Rituals · p. 335** Find It By Goal: every ingredient for your concern, rated, with its page.

← swipe or use the arrows to see more pages →

Try it tonight

The towel in the microwave.

Here's Ritual 2.1 from page 60, the one my father teased her about for thirty years. The ebook version comes with the vessel science behind it, the illustrated steps on page 61, and who should skip it.

Every ritual in the ebook is laid out like this: what you need, how long, numbered steps, how often, how it should feel, and the stop signs.

Chapter 2 · Warmth · Ritual 2.1p. 60

Umma's Warm Towel Press

on-chimjil · 온찜질

Time4 minHow oftenUp to dailyBest forNormal to dry skin

You need

A small cotton face towel or washcloth
A microwave-safe plate
Your moisturizer, open and ready

Steps

Soak the cloth in warm water and wring it until damp, not dripping.
Fold it loosely on the plate and microwave 20 to 30 seconds. Add 10 seconds at a time if needed.
Shake it out to release trapped steam and even out hot spots.
Test on your inner wrist 5 to 10 seconds. It should feel like a warm bath.
Lay it over your face, nose and mouth clear. Press gently with your palms. Don't rub.
Leave 1 to 3 minutes until it cools. Two rounds is the limit.
Pat dry and moisturize within a minute.

Evidence: Strong for the blood-flow response itself · Traditional for long-term skin benefitsStop signs: stinging, redness lasting over an hour, new broken vessels, or darker patches in sunny months. Skip it if you have rosacea or melasma.

New · the companion recipe ebook

Korean Face Serums, Hair Oils & Body Butters

125 homemade recipes, a 113-entry ingredient encyclopedia and a pairing guide for face, scalp, hair and body. Every recipe is oil-only, so there is nothing to preserve, and every one is written down to the drop and the gram.

28Face serums & face oils
25Scalp serums
22Hair oils & serums
22Body oils
28Body butters, balms & lip balms

$39.99~~$59.99~~Save $20 today

Already getting the rituals ebook? Add this one for only $17.50 →Free with the Auravael scalp serum, together with the rituals ebook →

577-page PDF ebook · instant download · by Yuna Kang Knight

1–2
Your Home Apothecary & Mixing Methods 섞는 법
Tools, percentages and density, then the methods: the master blend, which ingredients are thick and the warm pre-mix that blends them in completely, melting butters, stopping grainy shea, whipping, storage and troubleshooting.
p. 12
3–7
The Ingredient Encyclopedia 성분 사전
113 entries: 38 carrier oils, 14 butters and waxes, 19 CO₂ extracts, 35 essential oils and 7 actives. Each one: texture, whether to warm it, how much to use, what it pairs with, shelf life and cautions, with an evidence label.
p. 39
8
The Pairing Guide 궁합 가이드
Which carrier oils work together, which essential oils blend well, what to pair each CO₂ extract with, butter and wax ratios, building your own recipe, and pairings to avoid.
p. 263
9
Your Goal 나의 목표
51 problems, from wrinkles and dark spots to an inflamed scalp, split ends, crepey skin and cracked heels. Each one lists its matching recipes and key ingredients, with page numbers.
p. 284
10–14
The Recipe Library 레시피
125 oil-only recipes with exact mL, grams, drops and percentages, an illustration on nearly every one, and step-by-step instructions: face serums, scalp serums, hair oils, body oils, butters and balms.
p. 302

The recipes are home blends put together from published ingredient research, supplier data and tradition; they have not been lab-tested as finished products. Patch test every new blend. Not medical advice.

Look inside the recipe ebook

Real pages from Korean Face Serums, Hair Oils & Body Butters

Recipe pages and mixing methods, exactly as they open on your phone or tablet. Click any page to read it full size.

Serums & Butters, page 304 — **Serums & Butters · p. 304** Face Serum 1, the First-Timer's Simple Oil: ingredients in mL, grams and percent, and every step.

Serums & Butters, page 305 — **Serums & Butters · p. 305** Face Serum 2, Dongbaek Glow Oil, built on Halmeoni's camellia oil.

Serums & Butters, page 356 — **Serums & Butters · p. 356** Scalp Serum 1, the Rosemary Scalp Oil.

Serums & Butters, page 409 — **Serums & Butters · p. 409** Hair Oil 1, the Shine and Strength Hair Oil.

Serums & Butters, page 447 — **Serums & Butters · p. 447** Body Oil 1, Rice Bran and Camellia Simple Start.

Serums & Butters, page 486 — **Serums & Butters · p. 486** Body Butter 1, the Simple Shea Whipped Butter.

Serums & Butters, page 518 — **Serums & Butters · p. 518** Lip Balm 1, the First Beeswax Lip Balm.

Serums & Butters, page 27 — **Serums & Butters · p. 27** The warm pre-mix: how thick oils and CO₂ extracts get blended in completely.

← swipe or use the arrows to see more pages →

Auravael Elite Elixir scalp serum bottle

Elite Elixir box: Scalp Elixir Concentré, net 10 mL

Both ebooks free with the serum

A scalp serum built from the oils in Chapter 9.

Auravael's Elite Elixir is a botanical scalp concentrate: a fractionated MCT, Abyssinian oil and squalane base carrying CO₂-extracted botanicals and nine essential oils. Chapter 9 of the ebook has its own entry for each of the ingredients below, with what it is, what the studies found and the honest evidence label.

Auravael Elite Elixir · Scalp Elixir Concentré$79.99 ~~$168~~ + both ebooks FREE ~~$79.98~~Special price on this site · $168 on auravael.comFree shipping · 10 mL lasts about 2–4 months

Leave-in. A small amount on the scalp 2–4 times a week, massaged 30–60 seconds
No minoxidil, finasteride, silicones, parabens or synthetic fragrance
A cosmetic scalp treatment, not a medicine

Buy the serum and both ebooks come free: the rituals ebook, so you can read the entry behind every drop, and the 125-recipe serums, oils & butters ebook.

Serum: returns are accepted only for an unopened box with its seal sticker intact, within 30 days. Once the box seal is broken, it can't be returned for hygiene reasons. Damaged, leaking, wrong or lost? We replace it free. Return policy

What's in the bottle, and where the ebook covers it

Ingredients as Auravael lists them. Page numbers and labels are from the ebook.

In the serum	The ebook entry	Evidence	Page
Squalane (olive-derived)	Squalane, Olive-Derived	Early	p. 257
Abyssinian oil	Abyssinian Oil, Refined	Traditional	p. 258
MCT 60/40, fractionated	MCT Oil, Caprylic/Capric Triglyceride	Early	p. 255
Saw palmetto CO₂	Saw Palmetto Extract	Early	p. 237
Coffee bean CO₂	Coffee Bean CO2 Extract	Early	p. 243
Ginger CO₂	Ginger CO2 Extract	Early	p. 245
Pumpkin seed oil	Pumpkin Seed Oil	Moderate	p. 254
Perilla oil	Perilla Seed Oil (deulgireum)	Early	p. 264
Prickly pear oil	Prickly Pear Seed Oil	Early	p. 263
Batana oil	Batana Oil, Unrefined	Traditional	p. 260
Rosehip CO₂	Rosehip CO2 Extract	Early	p. 241
Sea buckthorn CO₂	Sea Buckthorn CO2 Extract	Early	p. 238
Pomegranate CO₂	Pomegranate CO2 Extract	Early	p. 242
Frankincense CO₂	Frankincense CO2 Extract	Early	p. 249
Rosemary ct. cineole	Rosemary ct. Cineole: Which Rosemary?	Moderate	p. 230
Japanese peppermint	Japanese Peppermint Essential Oil	Early	p. 229
Cedarwood atlas	Cedarwood Atlas Essential Oil	Early	p. 228
Lavender	Lavender Essential Oil	Early	p. 225
Holy basil	Holy Basil Essential Oil	Early	p. 231
Helichrysum	Helichrysum Essential Oil	Early	p. 234
Tea tree	Tea Tree Essential Oil	Moderate	p. 226
Thyme	Thyme and Cedarwood Oils, the Aberdeen Blend	Early	p. 227
Ylang ylang	Ylang Ylang Essential Oil (Grade III)	Traditional	p. 233

Pair it with the seven-minute scalp jiap (p. 117) and the warm oil scalp wrap (p. 64), and read the patch-test steps on p. 220 before your first use. Full details on auravael.com ↗

Auravael is our sister brand. The ebook was written separately and does not mention it.

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Rituals ebook: 379 pages. All 11 chapters and 55 ritual cards, 99 ingredient entries, each rated, Find It By Goal ingredient finder
Recipe ebook: 577 pages, 125 recipes
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Save $22.49 · second ebook $17.50

Korean Skin, Scalp & Hair Rituals for Lifelong Youth (379 pages)
Korean Face Serums, Hair Oils & Body Butters (577 pages, 125 recipes)
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Best value · both ebooks freeSerum + 2 ebooks

Elite Elixir scalp serum + both ebooks

$79.99~~$247.98~~

Save $167.99 · serum $168 on auravael.com + both ebooks free

Auravael Elite Elixir, 10 mL, shipped to you
Both ebooks free, downloaded today
The rituals ebook, with Chapter 9 entries for the serum's oils
The recipe ebook: 125 serums, oils and butters

7day
promise

Read it for a week.

If the ebook isn't for you, email support@yunakangbeauty.com within 7 days for a full refund of the ebook price.

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2 · The ebook opens

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Chapter illustration from the ebook: the warm towel ritual

Who's writing

I'm Yuna. I watched from the edge of the bathtub.

I'm forty, Korean-American, and I grew up in Columbus, Ohio. Kang, my middle name, is Umma's family name; she made sure it stayed in mine. For most of my twenties I ignored all of this, slept in my makeup and assumed my mother's skin was luck and genes.

In my thirties I started reading the actual studies, in dermatology and physiology journals, not product pages. I'm not a doctor or an esthetician. I'm a careful reader who wanted to know whether the freezer towel does anything. Now I do most of Umma's routine myself, a little less faithfully than she does.

Umma · Kang Mi-sookBorn 1958 in Jeonju. The towels, the little bathroom fridge, the sunscreen by the case

Halmeoni · Lee Bok-namRice water, mung-bean powder, camellia oil and the Dano hair wash

Yuna Kang Knight

Questions

Before you buy.

Is it a printed book?

No. It's a 379-page PDF ebook, downloaded right after checkout. Read it on your phone in the bathroom or print the ritual cards you use most. There's no account to make.

Do I need to buy special tools?

No. Level 1 in Chapter 11 is five minutes with a cleanser, a moisturizer and sunscreen. Most rituals use a washcloth, your microwave and your freezer. When a tool is worth buying (a roller, a gwalsa stone, cups, an LED mask), the ebook tells you what to look for and what to skip.

Is this medical advice?

No. It's a researched guide, not a substitute for a dermatologist. Every chapter has caution boxes for pregnancy, rosacea, melasma, eczema, blood thinners and more, and sudden or patchy hair loss always needs a doctor. Patch test anything new.

How are the ebooks free with the serum?

Put the Auravael Elite Elixir in your cart and both ebooks, the rituals ebook and the recipe ebook, are added at $0 automatically. You pay for the serum only, both ebooks download on the next screen, and the serum ships to the address you enter at checkout.

How does the second ebook deal work?

Your first ebook is the regular price. Add the other ebook to the same order and it drops to $17.50 automatically, no code needed.

What does the serum do, exactly?

It's a cosmetic leave-in scalp treatment: Auravael describes it as supporting a balanced, comfortable scalp and the appearance of fuller, healthier-looking hair. It contains no minoxidil, finasteride, silicones, parabens or synthetic fragrance. It isn't a medicine and isn't meant to treat hair loss. Apply a little to the scalp 2–4 times a week and massage for 30–60 seconds; one 10 mL bottle lasts about 2–4 months. Read the ebook's entries on its essential oils (and patch test) if you're pregnant, have epilepsy, or have sensitive skin.

Is Yuna a real person?

Yuna Kang Knight, Kang Mi-sook and their family are characters created for this ebook, as its copyright page says. Their story frames real, researched techniques, and every source is listed at the back.

Can I return the serum?

What if it isn't for me?

Email support@yunakangbeauty.com within 7 days and you'll get the ebook price back in full.

Tonight

Warm up a towel. Then tell me your mother's secret.

Start with one ritual this week. If your face feels different on Friday, the rest of the ebook is waiting.

Ebook $39.99 · 2nd ebook $17.50 · Both ebooks free with the Auravael serum →