Maruzen Pharmaceuticals Co., Ltd.
Maruzen Pharmaceuticals is a Japanese manufacturer of botanical and natural-product raw materials for the pharmaceutical, cosmetic, and food industries, headquartered in Onomichi, Hiroshima. The company is known for plant-derived extracts including licorice (glabridin), black ginger, perilla, pineapple, and oyster extracts, and operates its own production and quality-assurance functions across multiple factories (Headquarters Factory, Shin Onomichi, and Miyoshi). It supplies functional botanical ingredients on a B2B basis.
Onomichi, Hiroshima
Directory Listing · Certifications Confirmed
One or more certifications independently confirmed via public registries.
What this means →- MOQMOQ (Minimum Order Quantity)The smallest production run a manufacturer will accept for an order.
- Not publicly disclosed
- LEAD TIMELead TimeThe time from order placement to finished product delivery.
- Not publicly disclosed
§1Editorial assessment
Maruzen Pharmaceuticals is a Japanese manufacturer of botanical and natural-product raw materials for the pharmaceutical, cosmetic, and food industries, headquartered in Onomichi, Hiroshima. The company is known for plant-derived extracts including licorice (glabridin), black ginger, perilla, pineapple, and oyster extracts, and operates its own production and quality-assurance functions across multiple factories (Headquarters Factory, Shin Onomichi, and Miyoshi). It supplies functional botanical ingredients on a B2B basis.
§2Our review
The six checks in our review, applied before any name appears in the directory. Each check is auto-derived from public evidence on this profile.
§3Inspection history
§4Certifications
1 of 1 certification independently confirmed. What this means
§5Capability matrix
- PRODUCT TYPES
- Botanical Extracts · Licorice / Glabridin Extracts · Black Ginger Extracts · Perilla Extracts · Oyster Extracts · Food Additives
- CAPABILITIES
- Botanical Extraction · Natural-Product Raw Material Manufacturing · Quality Assurance / Production (in-house) · Functional Ingredient Development
§6Sources
Dietary supplement manufacturers must comply with 21 CFR Part 111 (Current Good Manufacturing Practice for dietary supplements). This includes requirements for personnel, facilities, equipment, production, laboratory operations, and record-keeping.
What We Couldn't Verify
- On-site facility inspection was not conducted
- Country-of-manufacture confirmed for the Hiroshima facility via FSSC 22000 certification; buyers should confirm country-of-origin per ingredient at quote stage
- Some marketed extracts span pharmaceutical, cosmetic, and food grades; confirm food/supplement-grade specification and documentation per order
Last reviewed: June 24, 2026
Disclosures
- No material connection exists between Inventory Ready and this company
For the check-by-check breakdown that produces this vendor's score, see our scoring framework. The connection map between Maruzen Pharmaceuticals Co., Ltd. and other vendors, capabilities, and certifications is in the manufacturer atlas.
Our Evaluation Method
Every manufacturer assessment follows six principles:
- Evidence: Claims backed by documentation, not marketing copy
- Freshness: Information reviewed and dated within the last 12 months
- Provenance: Sources cited for every key claim
- Challenge: Inconsistencies flagged, not hidden
- Disclosure: Material connections stated directly on affected listings
- Abstention: When we can't assess, we say so explicitly
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