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Best Price
Cheapest · 40mg
$53.19
$1.33/mg at Southern Aminos
Buy at Southern Aminos →Compare all 31 sources ↓serm31 sources in stock
Tamoxifen
SERM
SERM with extensive research history.
Estrogen researchHormone research
For research use only · Not for human consumption
/ compare by size
Every source for Tamoxifen
Affiliate disclosure: purchases through links below may earn us a commission. Rankings are never sold — methodology · full disclosure
Size:
15 sources for 20mg·cheapest $53.62 at Modern Research Peptides·$2.68/mg
Rank
Source
Trust Score
Price
$/mg
Buy
#1
Modern Research Peptides
★ 4.8· price unverified
$53.62
$2.68/mg
#2
RetaOneLabs
★ 4.7· price unverified
$54.43
$2.72/mg
#3
Solyn Peptides
★ 4.5· price unverified
$59.74
$2.99/mg
#4
Nano Blue Labs
★ 4.6· price unverified
$69.59
$3.48/mg
#5
Throne
★ 4.7· price unverified
$70.11
$3.51/mg
#6
AlgoRX
★ 4.7· price unverified
$71.14
$3.56/mg
#7
EZ Peptides
★ 4.7· price unverified
$92.85
$75.23
$3.76/mg
#8
Modified Aminos
★ 4.5· price unverified
$87.87
$76.34
$3.82/mg
#9
Valor Peptides
★ 4.8· price unverified
$103.67
$86.92
$4.35/mg
#10
Felix Chemical Supply
★ 4.5· price unverified
$88.34
$4.42/mg
#11
Biocase Innovations
★ 4.6· price unverified
$93.87
$4.69/mg
#12
Ion Peptide
★ 4.6· price unverified
$95.83
$4.79/mg
#13
Omegamino
★ 4.5· price unverified
$103.07
$5.15/mg
#14
Southern Aminos
★ 4.6· price unverified
$124.00
$104.78
$5.24/mg
#15
One Day Compounds
★ 4.6· price unverified
$118.25
$5.91/mg
#16
RefillPen
★ 4.5· price unverified
$73.96
$3.70/mg
#17
Lab Sourced
★ 4.7· price unverified
$78.10
$3.90/mg
🏆Our pick for Tamoxifen
Valor Peptides
40mg · USA · Card / Crypto
- ✓Third-party tested (Janoshik)
- ✓COAs provided — Comprehensive
- ✓Highest verification tier in stock
- ✓4.8★ community rating
Also solid
/ research index
The research base
Research Maturity
★★★★★
5/5 — Volume of studies
Evidence Strength
★★★★★
5/5 — Quality of evidence
Decades of clinical research.
/ mechanism of action
How it works
Estrogen receptor modulator with tissue-specific effects.
/ research dosing
Common research protocols
Range
10-20 mg/day
Frequency
Once daily
Route
Oral
Cycle
4-12 weeks
Research notes
SERM research dosing. Lower than oncology doses (20-40mg). Estrogen receptor modulation research.
References
FOR RESEARCH USE ONLY. Doses listed are compiled from published research literature, FDA-approved drug labels, and well-documented research community practice. Not medical advice.
/ standalone use
As a solo compound
Standard standalone use.
/ side effects
What to know
Common: mild side effects at research doses.
/ timeline
Realistic expectations
Multiple weeks
FOR RESEARCH USE ONLY. Tamoxifen is intended for laboratory research and not for human consumption.