Order protocol
Sleep & recovery Whole topic
Hormones & energy Whole topic
Metabolism & nutrition Whole topic
Brain & mind Whole topic
Longevity & body Whole topic
Women & family Whole topic
Basics & environment Whole topic
Biohacking & technology Whole topic
Fénix Methode

Tired of generic advice? A protocol built on your numbers.

Order protocol
All articles Every article is based on a chapter of the book NAVRHNUTÝ and peer-reviewed studies.
Biohacker score2 minutes – find out where your body holds you back Results checkNormal vs. optimal for your blood values Biological ageHow old your body is – from 9 blood values CalculatorsBMI, waist, protein, sleep, caffeine, VO2max Daily helperDaily routines, light, sleep and breathing on your phone My stackCheck supplements & medication + daily plan ChallengesSmall daily habits with reminders Fitness testVO2max, fitness age, strength and balance at home Biological twinAll your data in a 3D body What to get testedPrintable list of blood tests Sample protocolSee what you get E-numbers & sugarsWhat is on the label and what to avoid Online advisorAnswers to common questions about body and results SupplementsForms, timing and combination check RecipesMeals without hidden sugars or needless additives GlossaryBiohacking explained from A to Z Gift voucherGive health – the protocol or the book
← All supplements
PerformanceWeak evidence

Horny goat weed (Epimedium)

Also known as: epimedium, icariin

Epimedium is a traditional Chinese medicine herb whose main active compound is icariin. It is sold mainly for libido and erection support, but human evidence is limited.

What it is used for

  • libido and erectile function – weak evidence, mostly lab studies (mild PDE5 inhibition)
  • bone density after menopause – weak evidence from small studies

Forms and how they differ

extract standardised to icariin

most comparable form; 10–60% content per label

non-standardised extract

icariin content unknown

When to take it

With a meal, usually once a day.

Pairs well with

A healthy lifestyle; often combined with maca.

Do not combine / separate

Do not combine with erectile dysfunction drugs or blood pressure medicines without asking your doctor.

Watch out for

Be careful with heart disease, rhythm disorders, low blood pressure and hormone-sensitive conditions. During pregnancy or breastfeeding, with kidney or liver disease, or when taking medicines, consult your doctor.

Safety

Dizziness, palpitations and irritability have been reported at high doses. Do not exceed the label dose.

Practical tip

Look for a stated icariin percentage – without it you do not know what you are taking.

Products containing Horny goat weed (Epimedium) 1

Horny goat weed (Epimedium) 750 mgextract (icariin) · 750 mg / tabletLibidoMen’s healthHormonesBones
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence

Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.

Combination check

Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.

Check Horny goat weed (Epimedium) with others

Which supplements do you actually need?

Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.

Learn about Fénix Methode

From the same group

AmylopectinModerate evidenceBeta-alanineStrong evidenceBHB ketonesWeak evidenceCaffeineStrong evidenceCreatineStrong evidenceD-aspartic acidWeak evidence
Important notice

This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.