Persephone Biosciences GTM brain

Persephone sells infant and toddler synbiotic supplements to parents, supported by microbiome research and pediatric outreach.

category

Infant microbiome supplements

market profile

  • text: The current consumer offering centers on infant and toddler synbiotics, a material shift from the YC description of cancer therapeutics.
  • text: The company launched its consumer product in September 2025 and subsequently expanded to Amazon.

personas

  • title: Parent of an infant
    pains:
    • Choosing a probiotic with credible safety and clinical evidence
    • Finding a simple daily supplement compatible with infant feeding
  • title: Parent of a toddler
    pains:
    • Supporting a young child's digestive health with an age-specific product
    • Evaluating probiotic strains and prebiotics among competing products
  • title: Pediatric healthcare practitioner
    pains:
    • Assessing the quality and applicability of infant supplement evidence
    • Answering parent questions about microbiome products and safety

icp

  • text: Primary buyers are families with infants aged 0 to 12 months or toddlers 12 months and older, rather than firms.
  • text: Pediatric practices are potential referral partners, particularly those fielding parent questions about infant gut health.

message pillars

  • text: Combine probiotics with prebiotics designed for young children.
  • text: Lead with the controlled clinical study.
  • text: Emphasize independent safety testing.

objections

  • objection: How do I know this is safe for my baby?
    response: Share the trial and third-party testing details and encourage discussion with the child's clinician; avoid promising treatment.
  • objection: Why pay for another probiotic?
    response: Explain the age-specific combination of strains and prebiotics, and distinguish the clinical evidence from unproven outcomes.

competitors

  • name: Evivo
    website: https://store.evivo.com/pages/evivo-powder-probiotic
    why: Infant B. infantis probiotic powder competes for the same parent purchase.
  • name: BioGaia
    website: https://professionals.biogaia.com/pages/products
    why: Markets baby probiotic drops through a pediatric product range.

influencers

  • name: Stephanie Culler
    url: https://www.linkedin.com/posts/stephanie-culler_bifidobacterium-activity-7371290924343222272-Nzkr
    why: CEO and co-founder who posted about the consumer launch.

keywords

  • infant probiotic
  • baby gut microbiome
  • infant synbiotic
  • baby probiotics with vitamin D
  • toddler prebiotic probiotic
  • B infantis for infants

voice

  • Science-led and evidence-oriented
  • Reassuring to parents
  • Optimistic about early-life health

signals

  • text: New parent researching infant digestion or probiotic strains is a likely consumer prospect.
  • text: Pediatric practice discussing infant microbiome research may be a referral partner.

pricing

model: unknown

motion

product_led

channels

  • Direct-to-consumer website
  • Amazon
  • LinkedIn
  • Press
  • Healthcare practitioners

confidence

medium

Founders

  • name: Stephanie Culler
    title: Founder/CEO
    role: CEO
  • name: Stephen Van Dien
    title: Founder/CTO
    role: CTO

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