Our manufacturer · St.Herb
From farm to lab, with standards since 1999.
Every product on this store is grown and made by St.Herb. One company controls the whole chain, from cultivar selection to the sealed bottle.
- First independent phytoestrogen test
- 1999
- Acres under own cultivation
- 2,000+
- Products on this store
- 12
- Export to worldwide markets
- Worldwide
Why one company
Thirteen look-alike species, one root worth using
More than 13 related species look almost identical above ground but carry very different levels of miroestrol and deoxymiroestrol. Buying root on the open market means guessing.
Before planting, St.Herb researched which line held the most of these compounds, confirmed it by HPLC, and has grown only that line since.
Five things most brands outsource
What stays in-house
St.Herb started with its own farm and built the rest around it. Each stage below is run by the same company.
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Farm land
Soil tested and confirmed suitable before planting; our own plantation supplies all raw root.
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Cultivar selection
Biotechnology work to pick the line richest in miroestrol and deoxymiroestrol, verified by HPLC.
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Extraction
Our own extraction technology for a fine, soluble powder.
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Quality control
Identification, micro-organisms, pesticides and heavy metals checked on raw material and finished goods.
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Manufacturing
Capsules, creams and serums made in GMP-certified facilities, then released under a lot number.
From root to extract
Three extract forms, each for a job
The same root is processed differently depending on whether it ends up in a capsule, a cream or a serum.
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100% powder extract
Pure root extract. The base for our capsules, and sold to other manufacturers as an ingredient.
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80% mixed powder
Extract pre-blended with St.Herb’s formula, ready to fill into capsules.
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Liquid extract
For external products: creams, serums and gels.
How each form is standardised is covered in Quality & extraction.
Formulation
Three generations of the Breast Series
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Gen 1 · The Original
Where the brand started
The first St.Herb products, still made to the same formula.
Breast Cream · Breast Capsules
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Gen 2
Reformulated by our R&D team
Improved absorption for the external-use line.
Breast Serum · Breast Spray · Breast Mask
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Gen 3 · Nano Series
Nano-particle delivery
Smaller particles designed to keep the phytoestrogens stable and help them absorb.
Nano Breast Cream · Nano Breast Serum 15 / 40 ml
Tested outside the building
A test record that goes back to 1999
Phytoestrogen levels have been measured independently since 1999, and St.Herb reports the same readings today. Farm soil, raw root and finished products are also checked by independent labs.
View certificates- HPLC analysis
- Chromene and isoflavonoid derivatives in the root
- IQA-Norwest Labs
- Pueraria mirifica powder, three reports
- SGS Laboratory
- Independent analysis of raw material
- Department of Agriculture
- Organic certification
- Thai FDA · CTFA
- Product registration; Pueraria mirifica ingredient listed with CTFA
Manufacturer details
St.Herb Co., Ltd.
807/335 Moo 8, Pumarin Village, Phaholyothin Rd.Kukot, Lumlukka, Pathum Thani 12130, Thailand Phone +66 2 532 4603 WhatsApp +66 85 070 8003
Made in one place, checked by others
Browse the range, or ask a specialist for the lab report on a specific lot.