Hollow Labs emails
Hollow Labs sends about 3 emails a week through Klaviyo, most often on Monday around 6 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 3
- Busiest send time
- Mondays at 6am ET
- Last sent
- Today · Oct 29
- Tracked since
- Jul 2026
- Emails collected
- 35
Recent emails
Oct 28, 2026 4:37 AM
Still thinking it over?
Oct 26, 2026 1:11 PM
The first thing I'd drink every morning
Oct 23, 2026 11:55 AM
I'm 43 today. Here's a gift for you. Huge giveaway.
Oct 19, 2026 1:00 AM
The best preworkout for ligting ever made. Seriously
Oct 15, 2026 12:01 AM
Free Magnesium+ with every Serum, now through Sunday
Oct 13, 2026 6:27 AM
You can't out-supplement bad sleep
Recent subject lines
All subject linesSubject lines average 32 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 29, 2026 4:38 AM | Why this one gets attention | Here’s what makes it worth another look. | |
| Oct 28, 2026 4:37 AM | Still thinking it over? | The product you viewed is ready when you are. | |
| Oct 26, 2026 1:11 PM | The first thing I'd drink every morning | Morning Electrolytes Before the coffee. Why I think electrolytes belong first thing in the… | |
| Oct 23, 2026 11:55 AM | I'm 43 today. Here's a gift for you. Huge giveaway. | I'm 43 today. Here's a gift for you. Your free Founders Guide + a giveaway of three… | |
| Oct 19, 2026 1:00 AM | The best preworkout for ligting ever made. Seriously | Full doses take up space Caffeine plus carbohydrates for energy, with every dose on the… | |
| Oct 15, 2026 12:01 AM | Free Magnesium+ with every Serum, now through Sunday | Train late. Sleep anyway. Zero caffeine pump. Free Magnesium+ on me. Ends Sunday. | |
| Oct 13, 2026 6:27 AM | You can't out-supplement bad sleep | You can't out-supplement bad sleep Recovery happens at night. Here's how I'd handle it. | |
| Oct 8, 2026 10:32 AM | The Woodland Camo Tee is here. | Woodland Camo Tee $35. Standard fit. Sizes S–3XL. Our new Woodland Camo Tee is live. Hey… |
Archive
View full archiveOctober 2026 10 emails
View allThe Woodland Camo Tee is here.
Oct 8, 2026 10:32 AM
Before you take another pill for sleep
Oct 6, 2026 6:53 AM
Oct 1, 2026 5:26 AM
September 2026 11 emails
View allYou still want more out of your day.
Sep 28, 2026 9:49 AM
Sep 26, 2026 11:17 AM
Sep 25, 2026 11:14 AM
Sep 24, 2026 11:14 AM
Work. Kids. Training. Running on empty?
Sep 24, 2026 6:45 AM
Creatine isn't a muscle supplement anymore
Sep 16, 2026 6:45 AM
Sep 16, 2026 6:01 AM
Sep 14, 2026 6:15 AM
The most underrated product we make
Sep 11, 2026 8:03 AM
Sep 9, 2026 6:00 AM
Two new PD Special flavors are up
Sep 1, 2026 6:30 AM
When Hollow Labs sends
34% of its emails arrive in the 6 AM hour, with a second, smaller wave around 11 AM. Mondays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 1 | 0 | 1 | 0 | 1 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tue | 0 | 0 | 0 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Thu | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Fri | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sun | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 1a | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 3a | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| 4a | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| 5a | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
| 6a | 3 | 4 | 3 | 1 | 1 | 0 | 0 |
| 7a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
| 9a | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10a | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 11a | 0 | 0 | 0 | 1 | 2 | 1 | 0 |
| 12p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1p | 1 | 0 | 0 | 1 | 1 | 1 | 0 |
| 2p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FewerMore(busiest cell: 4 emails)
Based on 35 emails received from Jul 3 to Oct 29, 2026. Times in US Eastern. How we collect · When all brands send
How often Hollow Labs sends
The one complete month so far had 11 emails.
- Busiest month
- Sep 2026, 11
- Quietest month
- Sep 2026, 11
- Busiest day
- Monday, 8
- Quietest day
- Sunday, 1
About Hollow Labs
- ESP
- Klaviyo
- Tracked since
- Jul 2026
- Emails collected
- 35
- Emails a week
- about 3
- Last sent
- Oct 29, 2026
- Sends from
- allen@
hollowlabs.com - Subject length
- 32 characters avg
Counts include automated emails such as a welcome series.
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
| Klaviyo | Top 1 million sites | about 3 | Tuesday | Oct 29, 2026 | Klaviyo · about 3 a week · busiest Tuesday · last sent Oct 29, 2026 | ||
| Klaviyo | Top 500,000 sites | about 3 | Sunday | Oct 29, 2026 | Klaviyo · about 3 a week · busiest Sunday · last sent Oct 29, 2026 | ||
| Klaviyo | about 3 | Saturday | Oct 28, 2026 | Klaviyo · about 3 a week · busiest Saturday · last sent Oct 28, 2026 |



















