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The California Stem Cell Report

The California Stem Cell Report Add us as a preferred source on Google

Substack @david293 Science
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Make a deal with The California Stem Cell Report

🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored placementThe primary sponsor slot at the top of a regular issue — you… $40→ 📝Sponsored post (editorial)A full post written in my voice featuring your product — new… $72→ 📧Dedicated sendA whole solo email to my list about you — the entire inbox m… $104→ 🔖Classified / footer adA short text ad in the footer of an issue — the affordable e… $20→ 📦Package / presenting sponsorRecurring placements across several issues — "brought to you… $120/mo→ ⭐Paid recommendationI recommend your newsletter or product to my subscribers via… $48→ 🔗Affiliate / commissionOngoing affiliate mentions in my issues. The monthly fee is … $20/mo→ 🤝Cross-promo swapWe recommend each other to our lists — a value swap between … Swap→ 📞1:1 ConsultPaid video call — advice, coaching or Q&A $75/hr→

Every booking is a normal escrow-protected deal.

Subscribers
639
Account age
21 yrs
🎁 Free analysisfor The California Stem Cell Report
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

💡 Facts

🗓️Joined Substack in 2005 — 21 years ago.
📤Posts about 2.6× per week.
💬0.16% engagement rate.

👥 Audience demographics

Estimated

Modeled from this creator's niche, platform & region — a niche benchmark, not this creator's real audience data.

Gender split
Male 73% Female 27%
Age · peak 18-24
13-178%
18-2435%
25-3429%
35-4418%
45+10%
Top geographies
  • United States34%
  • India11%
  • United Kingdom8%
  • Brazil6%
  • Indonesia5%
Likely interests
EntertainmentLifestyleTrending

💬 Newsletter engagement

Measured

Real reader activity from the last 12 posts — reactions, comments and restacks are public on every Substack post.

1
❤ avg reactions / post
0
💬 avg comments / post
0
🔁 avg restacks / post
0.16%
Strongreaction rate
Free issues (reach the whole list) vs paywalled
42% free

A mix of free and paid issues — sponsored placements in the free issues reach the full list.

About

An inside and independent look at the Golden State's $12 billion stem cell research program, how it works, who wins and who loses, its conflicts of interest and its changing priorities.

📮 Recommends

From Substack

The California Stem Cell Report publicly recommends these newsletters to its readers — a real signal of shared audience and strong collab targets.

Mary Lynne Vellinga Golden State Report The Good Science Project Cell & Gene weekly GoozNews

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Frequently asked questions

How much does The California Stem Cell Report charge for a sponsorship?
The California Stem Cell Report hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact The California Stem Cell Report for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify The California Stem Cell Report, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many subscribers does The California Stem Cell Report have?
The California Stem Cell Report has 639 subscribers on Substack.

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