K18Hair subject lines
230 subject lines averaging 36 characters.
| Picture | Sent (Eastern) | Subject | Characters | Preview text | |
|---|---|---|---|---|---|
| Jul 13, 2026 5:00 AM | final call: FREE shipping ends today 👀 | 39 | Code inside - don't miss out | Jul 13, 2026 5:00 AM · 39 characters. Code inside - don't miss out | |
| Jul 12, 2026 1:11 PM | save your hair this summer | 26 | K18 to the rescue | Jul 12, 2026 1:11 PM · 26 characters. K18 to the rescue | |
| Jul 12, 2026 7:00 AM | don't miss out on FREE shipping | 31 | Code inside - this weekend only | Jul 12, 2026 7:00 AM · 31 characters. Code inside - this weekend only | |
| Jul 11, 2026 11:29 AM | Ready for your healthiest hair? | 31 | 10% off everything you need | Jul 11, 2026 11:29 AM · 31 characters. 10% off everything you need | |
| Jul 10, 2026 7:50 PM | instructions for a great hair day this way→ | 44 | How to get the most out of your K18 mask + how much to use | Jul 10, 2026 7:50 PM · 44 characters. How to get the most out of your K18 mask + how much to use | |
| Jul 10, 2026 7:00 AM | YES to free shipping all weekend 🙌 | 35 | We bet you’ll want in on this - code inside | Jul 10, 2026 7:00 AM · 35 characters. We bet you’ll want in on this - code inside | |
| Jul 9, 2026 7:53 PM | hair repair is meant to be shared | 33 | $10 for you, $10 for all your friends | Jul 9, 2026 7:53 PM · 33 characters. $10 for you, $10 for all your friends | |
| Jul 9, 2026 11:28 AM | 10% off for soft, strong, bouncy hair | 37 | Let's double take 👀 | Jul 9, 2026 11:28 AM · 37 characters. Let's double take 👀 | |
| Jul 7, 2026 7:30 AM | summer is for air drying | 24 | Here's the secret to a shiny, frizz-free finish | Jul 7, 2026 7:30 AM · 24 characters. Here's the secret to a shiny, frizz-free finish | |
| Jul 6, 2026 10:21 AM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Jul 6, 2026 10:21 AM · 50 characters. The results you’ve been looking for are this way | |
| Jul 6, 2026 5:24 AM | save 10% on healthy hair | 24 | Power your routine for less | Jul 6, 2026 5:24 AM · 24 characters. Power your routine for less | |
| Jul 5, 2026 2:20 PM | 10% off everything you need | 27 | Ready for your healthiest hair? | Jul 5, 2026 2:20 PM · 27 characters. Ready for your healthiest hair? | |
| Jul 4, 2026 5:23 AM | your hair’s dream = K18 | 25 | See how molecular repair works | Jul 4, 2026 5:23 AM · 25 characters. See how molecular repair works | |
| Jul 3, 2026 2:00 PM | all your AirWash™ questions, answered | 39 | You’ve never tried a dry shampoo like *this* | Jul 3, 2026 2:00 PM · 39 characters. You’ve never tried a dry shampoo like *this* | |
| Jul 2, 2026 5:22 AM | love K18? get rewarded for healthy hair! | 40 | Join TYB + start earning from day one | Jul 2, 2026 5:22 AM · 40 characters. Join TYB + start earning from day one | |
| Jul 1, 2026 7:30 AM | 20% off ends at midnight 💔 | 27 | last call | Jul 1, 2026 7:30 AM · 27 characters. last call | |
| Jun 30, 2026 5:21 AM | haircare you can *really* trust \ud83d\ude4f + 10% off | 54 | Join the healthy hair hype | Jun 30, 2026 5:21 AM · 54 characters. Join the healthy hair hype | |
| Jun 29, 2026 6:45 PM | summer heat = more showers | 26 | Protect your hair from hard water | Jun 29, 2026 6:45 PM · 26 characters. Protect your hair from hard water | |
| Jun 29, 2026 2:29 PM | 20% off healthier hair is waiting | 33 | Let's double take | Jun 29, 2026 2:29 PM · 33 characters. Let's double take | |
| Jun 28, 2026 2:01 PM | Don't miss out on 20% OFF bio repair heroes 🧬 | 46 | ..which means everything* | Jun 28, 2026 2:01 PM · 46 characters. ..which means everything* | |
| Jun 28, 2026 5:20 AM | does K18 *actually* work? try it with 10% off | 45 | Yes, and we have the pics to prove it | Jun 28, 2026 5:20 AM · 45 characters. Yes, and we have the pics to prove it | |
| Jun 28, 2026 1:37 AM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Jun 28, 2026 1:37 AM · 50 characters. The results you’ve been looking for are this way | |
| Jun 27, 2026 5:35 AM | 10% off everything you need | 27 | Ready for your healthiest hair? | Jun 27, 2026 5:35 AM · 27 characters. Ready for your healthiest hair? | |
| Jun 26, 2026 7:01 AM | Summer Sale Alert: 20% OFF ☀️ | 29 | Save on biomimetic repair all summer long | Jun 26, 2026 7:01 AM · 29 characters. Save on biomimetic repair all summer long | |
| Jun 26, 2026 5:19 AM | 10% off brighter, longer-lasting blonde | 39 | Meet TripleBright | Jun 26, 2026 5:19 AM · 39 characters. Meet TripleBright | |
| Jun 25, 2026 7:23 PM | blonde hair keep going brassy? | 30 | It’s not you—it’s unfiltered tap water | Jun 25, 2026 7:23 PM · 30 characters. It’s not you—it’s unfiltered tap water | |
| Jun 24, 2026 7:30 AM | ☀️ 20% OFF - Limited time only! | 31 | Includes our multi-award winning mask 🥇 | Jun 24, 2026 7:30 AM · 31 characters. Includes our multi-award winning mask 🥇 | |
| Jun 24, 2026 5:18 AM | have you used your code yet? | 28 | Claim your healthy hair savings | Jun 24, 2026 5:18 AM · 28 characters. Claim your healthy hair savings | |
| Jun 23, 2026 1:30 PM | prime day deal: 25% off select K18 haircare | 43 | Save on staples for soft, strong, bouncy hair | Jun 23, 2026 1:30 PM · 43 characters. Save on staples for soft, strong, bouncy hair | |
| Jun 21, 2026 2:16 PM | soft, smooth hair with every wash | 33 | Now with fewer refills ($73 value) | Jun 21, 2026 2:16 PM · 33 characters. Now with fewer refills ($73 value) | |
| Jun 21, 2026 5:19 AM | 10% off for soft, strong, bouncy hair | 37 | Let's double take 👀 | Jun 21, 2026 5:19 AM · 37 characters. Let's double take 👀 | |
| Jun 20, 2026 5:13 AM | when should I use K18? 🤔 — plus 10% off | 41 | Reach your hair goals faster with this quick routine guide | Jun 20, 2026 5:13 AM · 41 characters. Reach your hair goals faster with this quick routine guide | |
| Jun 20, 2026 5:00 AM | 4 top causes of summer hair damage ☀️ | 37 | Stay healthy all season long | Jun 20, 2026 5:00 AM · 37 characters. Stay healthy all season long | |
| Jun 19, 2026 10:20 AM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Jun 19, 2026 10:20 AM · 50 characters. The results you’ve been looking for are this way | |
| Jun 18, 2026 2:19 PM | 10% off everything you need | 27 | Ready for your healthiest hair? | Jun 18, 2026 2:19 PM · 27 characters. Ready for your healthiest hair? | |
| Jun 18, 2026 5:12 AM | 10% off—our treat 🎁 | 20 | Welcome to the world of K18 | Jun 18, 2026 5:12 AM · 20 characters. Welcome to the world of K18 | |
| Jun 14, 2026 3:00 PM | time's running out for FREE shipping | 36 | Code inside - don't miss out | Jun 14, 2026 3:00 PM · 36 characters. Code inside - don't miss out | |
| Jun 10, 2026 5:00 AM | the fastest self-care? clean hair 💜 | 36 | even if you don't have time for an everything shower | Jun 10, 2026 5:00 AM · 36 characters. even if you don't have time for an everything shower | |
| Jun 1, 2026 2:01 PM | Last chance: 15% OFF + free gift 💜 | 35 | Ends at Midnight - discount code inside | Jun 1, 2026 2:01 PM · 35 characters. Ends at Midnight - discount code inside | |
| May 31, 2026 3:00 PM | commit to your hair goals | 25 | 15% OFF ending soon - use code TAKE15 | May 31, 2026 3:00 PM · 25 characters. 15% OFF ending soon - use code TAKE15 | |
| May 26, 2026 7:00 AM | UV rays are damaging your hair 😳 | 33 | shield your hair all summer | May 26, 2026 7:00 AM · 33 characters. shield your hair all summer | |
| May 23, 2026 3:00 PM | they're bestsellers for a reason | 32 | Free shipping when you spend €100+ | May 23, 2026 3:00 PM · 32 characters. Free shipping when you spend €100+ | |
| May 21, 2026 3:01 PM | try HeatBounce for FREE | 23 | Stop damage before it happens - Free 15ml when you spend €80+ | May 21, 2026 3:01 PM · 23 characters. Stop damage before it happens - Free 15ml when you spend €80+ | |
| May 17, 2026 3:00 PM | Your weekly wash routine? Sorted. | 33 | we made you a cheat sheet | May 17, 2026 3:00 PM · 33 characters. we made you a cheat sheet | |
| May 16, 2026 10:57 AM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | May 16, 2026 10:57 AM · 50 characters. The results you’ve been looking for are this way | |
| May 15, 2026 3:00 PM | 2 steps for strong, soft, bouncy hair 👉 | 40 | hair damage? reverse it with this mini routine (23% off) | May 15, 2026 3:00 PM · 40 characters. hair damage? reverse it with this mini routine (23% off) | |
| May 15, 2026 2:59 PM | 10% off everything you need | 27 | Ready for your healthiest hair? | May 15, 2026 2:59 PM · 27 characters. Ready for your healthiest hair? | |
| May 13, 2026 2:51 PM | Ready for your healthiest hair? | 31 | 10% off everything you need | May 13, 2026 2:51 PM · 31 characters. 10% off everything you need | |
| May 13, 2026 2:00 PM | POV: you just showered, what does your hair need? | 49 | A post-shampoo repair routine | May 13, 2026 2:00 PM · 49 characters. A post-shampoo repair routine | |
| May 11, 2026 2:51 PM | 10% off for soft, strong, bouncy hair | 37 | Let's double take 👀 | May 11, 2026 2:51 PM · 37 characters. Let's double take 👀 |
Based on 230 emails received from Mar 16 to Nov 7, 2026. Times in US Eastern. How we collect