K18Hair subject lines
230 subject lines averaging 36 characters.
| Picture | Sent (Eastern) | Subject | Characters | Preview text | |
|---|---|---|---|---|---|
| Aug 27, 2026 5:45 PM | wash day just got way better | 28 | Bigger bottles, same breakthrough tech ($73) | Aug 27, 2026 5:45 PM · 28 characters. Bigger bottles, same breakthrough tech ($73) | |
| Aug 26, 2026 10:35 AM | 20% off healthier hair is waiting | 33 | Let's double take | Aug 26, 2026 10:35 AM · 33 characters. Let's double take | |
| Aug 26, 2026 7:00 AM | 20% OFF ☀️ Limited time only! | 30 | Includes our multi-award winning mask 🥇 | Aug 26, 2026 7:00 AM · 30 characters. Includes our multi-award winning mask 🥇 | |
| Aug 25, 2026 7:40 PM | how to use NEW FutureIQ™ longevity serum | 42 | Rewrite your hair's future while you sleep | Aug 25, 2026 7:40 PM · 42 characters. Rewrite your hair's future while you sleep | |
| Aug 22, 2026 10:46 PM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Aug 22, 2026 10:46 PM · 50 characters. The results you’ve been looking for are this way | |
| Aug 22, 2026 2:45 AM | 10% off everything you need | 27 | Ready for your healthiest hair? | Aug 22, 2026 2:45 AM · 27 characters. Ready for your healthiest hair? | |
| Aug 21, 2026 11:25 PM | FutureIQ™ is different from other scalp serums | 47 | It works before graying, shedding, aging set it | Aug 21, 2026 11:25 PM · 47 characters. It works before graying, shedding, aging set it | |
| Aug 21, 2026 7:00 AM | The mini biotech routine you need | 33 | Soft, strong, bouncy hair starts here (save 21%) | Aug 21, 2026 7:00 AM · 33 characters. Soft, strong, bouncy hair starts here (save 21%) | |
| Aug 20, 2026 7:16 PM | yes, the giant hair ball was us | 31 | NY, thank you for a day we’ll always remember | Aug 20, 2026 7:16 PM · 31 characters. NY, thank you for a day we’ll always remember | |
| Aug 18, 2026 8:15 PM | K18 kits are ~everything~ | 25 | Soft, strong, bouncy hair, here you come | Aug 18, 2026 8:15 PM · 25 characters. Soft, strong, bouncy hair, here you come | |
| Aug 17, 2026 3:01 PM | final call: FREE shipping ends midnight 👀 | 42 | Code inside - don't miss out | Aug 17, 2026 3:01 PM · 42 characters. Code inside - don't miss out | |
| Aug 16, 2026 4:14 PM | if you love the mask, go jumbo ($150 value) | 43 | It’s literally 2x the repair | Aug 16, 2026 4:14 PM · 43 characters. It’s literally 2x the repair | |
| Aug 16, 2026 2:00 PM | time's running out for FREE shipping 🤯 | 39 | Code inside - don't miss out | Aug 16, 2026 2:00 PM · 39 characters. Code inside - don't miss out | |
| Aug 14, 2026 1:29 PM | can you really reverse your hair's biological age? | 50 | Meet the proprietary K18 tech that makes it happen | Aug 14, 2026 1:29 PM · 50 characters. Meet the proprietary K18 tech that makes it happen | |
| Aug 12, 2026 5:16 AM | reminder 🚨 10% OFF | 20 | claim it while you can | Aug 12, 2026 5:16 AM · 20 characters. claim it while you can | |
| Aug 11, 2026 7:30 AM | 2 steps for strong, soft, bouncy hair | 37 | reverse hair damage with this mini routine (23% off) | Aug 11, 2026 7:30 AM · 37 characters. reverse hair damage with this mini routine (23% off) | |
| Aug 10, 2026 1:00 PM | is your hair aging faster than you? | 35 | Here's what you can do about graying + shedding | Aug 10, 2026 1:00 PM · 35 characters. Here's what you can do about graying + shedding | |
| Aug 9, 2026 3:00 PM | a new solution for premature hair ageing | 40 | COMING SOON | Aug 9, 2026 3:00 PM · 40 characters. COMING SOON | |
| Aug 9, 2026 1:28 PM | 10% off all K18 minis | 21 | Vacation-ready hair, powered by biotech | Aug 9, 2026 1:28 PM · 21 characters. Vacation-ready hair, powered by biotech | |
| Aug 8, 2026 5:56 AM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Aug 8, 2026 5:56 AM · 50 characters. The results you’ve been looking for are this way | |
| Aug 7, 2026 9:55 AM | 10% off everything you need | 27 | Ready for your healthiest hair? | Aug 7, 2026 9:55 AM · 27 characters. Ready for your healthiest hair? | |
| Aug 7, 2026 7:30 AM | tired of spotting split ends? | 29 | You need an oil that reverses damage | Aug 7, 2026 7:30 AM · 29 characters. You need an oil that reverses damage | |
| Aug 5, 2026 1:05 PM | NEW 🩶 FutureIQ™ biomimetic hair longevity serum | 49 | Reduce shedding, reverse early graying + protect scalp aging with K18 tech | Aug 5, 2026 1:05 PM · 49 characters. Reduce shedding, reverse early graying + protect scalp aging with K18 tech | |
| Aug 4, 2026 7:30 AM | coming soon: hair tech from the future | 38 | "I'm a little bit speechless." | Aug 4, 2026 7:30 AM · 38 characters. "I'm a little bit speechless." | |
| Aug 3, 2026 8:45 PM | ask Dr. Sheila Farhang all your hair questions | 46 | Meet us on Reddit to talk shedding, graying (and FutureIQ™) | Aug 3, 2026 8:45 PM · 46 characters. Meet us on Reddit to talk shedding, graying (and FutureIQ™) | |
| Aug 2, 2026 7:00 AM | Ends soon - 15% OFF 💜 | 22 | Save on staples for soft, strong, bouncy hair - code inside | Aug 2, 2026 7:00 AM · 22 characters. Save on staples for soft, strong, bouncy hair - code inside | |
| Aug 2, 2026 5:15 AM | 10% off is waiting for you | 26 | Healthy hair starts here | Aug 2, 2026 5:15 AM · 26 characters. Healthy hair starts here | |
| Aug 1, 2026 12:38 AM | Ready for your healthiest hair? | 31 | 10% off everything you need | Aug 1, 2026 12:38 AM · 31 characters. 10% off everything you need | |
| Jul 31, 2026 7:00 AM | 15% off - our treat 🎁 | 22 | VIP Email Exclusive - code inside | Jul 31, 2026 7:00 AM · 22 characters. VIP Email Exclusive - code inside | |
| Jul 30, 2026 4:24 PM | "I'm excited that I'm getting my hair back." | 44 | NEW solution for premature hair aging coming soon | Jul 30, 2026 4:24 PM · 44 characters. NEW solution for premature hair aging coming soon | |
| Jul 30, 2026 12:37 AM | 10% off for soft, strong, bouncy hair | 37 | Let's double take 👀 | Jul 30, 2026 12:37 AM · 37 characters. Let's double take 👀 | |
| Jul 28, 2026 7:41 PM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Jul 28, 2026 7:41 PM · 50 characters. The results you’ve been looking for are this way | |
| Jul 28, 2026 6:22 PM | ATTN: blondes! here’s how to use TripleBright | 47 | It’s triple the tech, not the effort | Jul 28, 2026 6:22 PM · 47 characters. It’s triple the tech, not the effort | |
| Jul 27, 2026 11:40 PM | 10% off everything you need | 27 | Ready for your healthiest hair? | Jul 27, 2026 11:40 PM · 27 characters. Ready for your healthiest hair? | |
| Jul 27, 2026 7:15 PM | soft, smooth hair + fewer refills | 33 | Stock your shower with jumbo wash care ($73 value) | Jul 27, 2026 7:15 PM · 33 characters. Stock your shower with jumbo wash care ($73 value) | |
| Jul 27, 2026 3:30 PM | Don't miss 15% OFF 💜 | 21 | Ends at Midnight - discount code inside | Jul 27, 2026 3:30 PM · 21 characters. Ends at Midnight - discount code inside | |
| Jul 26, 2026 4:16 PM | "I'm a little bit speechless." | 30 | NEW K18 tech will do that to you | Jul 26, 2026 4:16 PM · 30 characters. NEW K18 tech will do that to you | |
| Jul 26, 2026 3:00 PM | Treat your hair to 15% OFF ✨ | 29 | This weekend only - use code TAKE15 | Jul 26, 2026 3:00 PM · 29 characters. This weekend only - use code TAKE15 | |
| Jul 24, 2026 4:01 PM | if you love the mask, go jumbo ($150 value) | 43 | 2x the repair + fewer refills | Jul 24, 2026 4:01 PM · 43 characters. 2x the repair + fewer refills | |
| Jul 24, 2026 7:00 AM | IT’S ON: 15% off everything* 🔥 | 32 | treat yourself to repair | Jul 24, 2026 7:00 AM · 32 characters. treat yourself to repair | |
| Jul 23, 2026 5:14 AM | 10% off strong, shiny hair ✨ | 29 | Reach your hair goals with biotech-powered haircare | Jul 23, 2026 5:14 AM · 29 characters. Reach your hair goals with biotech-powered haircare | |
| Jul 22, 2026 4:14 PM | AirWash™ = the first biotech-powered dry shampoo | 49 | The science of fresh hair | Jul 22, 2026 4:14 PM · 49 characters. The science of fresh hair | |
| Jul 18, 2026 3:00 PM | why isn’t your hair growing? | 30 | The surprising cause of limited length | Jul 18, 2026 3:00 PM · 30 characters. The surprising cause of limited length | |
| Jul 17, 2026 3:30 PM | coming soon: hair tech from the future | 38 | An exclusive leak from the K18 longevity lab | Jul 17, 2026 3:30 PM · 38 characters. An exclusive leak from the K18 longevity lab | |
| Jul 16, 2026 3:23 PM | the ultimate routine for soft, strong, bright blonde | 52 | It’s just 2 steps | Jul 16, 2026 3:23 PM · 52 characters. It’s just 2 steps | |
| Jul 16, 2026 7:00 AM | save your hair this summer ☀️ | 29 | K18 to the rescue | Jul 16, 2026 7:00 AM · 29 characters. K18 to the rescue | |
| Jul 15, 2026 7:23 PM | we’re obsessed with these NEW kits | 35 | They’re 1. cute and 2. clinically proven to give you soft, strong, bouncy hair | Jul 15, 2026 7:23 PM · 35 characters. They’re 1. cute and 2. clinically proven to give you soft, strong, bouncy hair | |
| Jul 14, 2026 10:59 PM | ending soon: 10% off for soft, strong, bouncy hair | 50 | The results you’ve been looking for are this way | Jul 14, 2026 10:59 PM · 50 characters. The results you’ve been looking for are this way | |
| Jul 14, 2026 2:59 AM | 10% off everything you need | 27 | Ready for your healthiest hair? | Jul 14, 2026 2:59 AM · 27 characters. Ready for your healthiest hair? | |
| Jul 13, 2026 5:13 AM | don’t forget: 10% off inside | 29 | Use code WELCOME at checkout | Jul 13, 2026 5:13 AM · 29 characters. Use code WELCOME at checkout |
Based on 230 emails received from Mar 16 to Nov 7, 2026. Times in US Eastern. How we collect