Knowledge: Oak Gall Manjakani (Quercus Infectoria)

Oak Gall Manjakani (Quercus Infectoria)

Quercus infectoria, one of the popular medicinal plants used traditionally in postpartum care and treatment of various ailments. This plant is a small tree or shrub about two meters high and is mainly found in Asia, Greece, and Iran. Its galls are round-shaped abnormal growth found arising on the young branches of the oak tree due to the attack by the stinging gall-wasp. The galls of Quercus infectoria are globular in shape and from 10 to 25 mm in diameter. They have a short, basal stalk and numerous rounded projections on the surface. They are hard and heavy, usually sinking in water.

In Malaysia, the galls known as “biji manjakani”, which have been used among Malays to restore postpartum uterine elasticity and also stimulate the contraction of vaginal muscles. The old folk’s women believed that “manjakani” is a ‘magical’ fruit that has many usage especially to women. In Indian traditional medicine, it is a constituent of toothpowder or toothpaste for treatment of gum and oral cavity diseases.

  • Vegan
  • Non-GMO
  • No Fillers
  • No Flavors
  • No Additives
  • No Preservatives
  • No Artificial Colors
  • Soy and Gluten Free
  • Lab Tested for Authentic & Active Compound
  • Origin from Malaysia Borneo Forest

Pure Manjakani Oak Gall Quercus Infectoria Extract must have Tannic Acid: gallotannin!

Without Tannic Acid: gallotannin, its not Manjakani Oak Gall Quercus infectoria! 60-75% Tannic Acid: Gallotannin (Bioactive Phytochemicals)
No harm/chemicals/preservative, just harmony, manufactured naturally

BIONUTRICIA Oak Gall Manjakani Extract BRAND X
Certification Registered with the Ministry of Health, Halal Tested Not registered & certified
Raw Ingredients Oak Gall Manjakani from Malaysia Very little / no raw ingredients; Use non-Oak Gall Manjakani materials
Process Extracted through R.O. water & Ultra-sonic; Full bio-active ingredients Oak Gall powder; Extracted through ethanol process
Active Compound Tested with high amount of Tannic Acid: gallotannin Not Tested
Formulation Only Oak Gall Manjakani – which is proven safe and effective Combination of other ingredients (effectiveness & safety is not proven); Added with prohibited drugs
Label Transparent, standardized Only Oak Gall Manjakani extract with 60-75% Tannic Acid: Gallotannin Misleading claim (quantity), incorrect amount of Oak Gall Manjakani extract, mostly filler ingredients

Tannins specifically gallotannin which constituted for almost 50-70% of Q. infectoria galls were reported to demonstrate most of the anti-inflammatory, antibacterial, and antifungal activities. Apart from that, a small amount of gallic acid (60-75%) and ellagic acid were also present in the gall extracts.

Halal Certificate & High Standard Product Quality Control

Our Standardized Oak Gall Manjakani extracts are tested by NIBM which contain high amount of active compounds.


Bone Health

In vitro study on effect of Manjakani extract on bone
Subject Human osteoblast cell line model
Duration of the study 20 days
Dosage 20 μg/mL
  • Negative control
  • Positive control: C3H11NO7P2
  • Treatment group
Parameters analysed
  • Bone formation markers level (ALP and osteocalcin)
  • Light microscopy on bone-forming cells
QI gall extract might be a potent anabolic agent that stimulate osteoblastic activity and potentially used for the treatment and prevention of osteoporosis.

Visible benefits

  • Small concentrations of QI gall extract were able to enhance bone formation better compared to C3H11NO7P2.
  • QI gall extract increased cell proliferation by increasing the level of bone formation markers (ALP and osteocalcin) secreted by the osteoblast cells.

Reducing Excessive Vaginal Discharge

In vivo study on effect of Manjakani extract on leucorrhoea
Subject Female hormonal contraception acceptors (n=26) aged 20-45 who had leucorrhoea complaints
Duration of the study 10 days (1 times per day)
Dosage Extract of manjakani (0.04g/mL)
Groups Treatment group (before & after)
Parameters analysed Interview
Administration of Manjakani seed extract can help the body’s internal ability, especially the vagina, to maintain its physiological condition.
Visible benefits
After manjakani extract administration, there is a reduction in vaginal discharge complaints by 60%.

Help To Control Odor

In vitro study on effect of Manjakani extract on fungal infection
Subject Candida sp. that cause vaginal yeast infection
Duration of the study 3 days
Dosage Minimum fungicidal concentration: 1.8 – 2 mg/ml
  • Positive control
  • Treatment group
Parameters analysed Anti-fungal activity by disc diffusion test
Q. infectoria gall extracts are a potential source to be developed as anti-candidiasis.

Visible benefits

  • Aqueous extracts displayed substantial anti-Candida activity and pyrogallol was the major component of the crude extract.
  • Pyrogallol is one of hydrolysable tannin with high molecular weight and glucose esters of phenolic acids.

Improve To Tighten The Vagina

In vivo study on effect of Manjakani extract on vagina relaxation
Subject Women who had child (n=160) aged 45 ± 5
Duration of the study 2 days after the end of menstruation, 10 minutes before sexual contact
Dosage 0.8, 1.5 and 2 grams of extract
  • Placebo
  • Treatment group
Parameters analysed Pelvic Organ Prolapse/Urinary Incontinence Sexual Function Questionnaire
Oak Gall can increase vaginal tightness, improve vaginal lubrication and reduce its dryness.

Visible benefits

  • Sense of sexual satisfaction and orgasm, sense of vaginal tightness during intercourse, sense of vaginal lubrication and loss of vaginal dryness were significantly improved in treatment group.
  • Urinary incontinence, sense of vaginal mass exit, lack of orgasm, sense of air outflow during intercourse, sense of calmness after sex and loss of libido were significantly reduced in the 1.5 grams dosage group.

Oral Health

In vitro study on effect of Manjakani extract on oral pathogens
Subject Streptococcus mutans, Streptococcus salivarius, Porphyromonas gingivalis and Fusobacterium nucleatum
Duration of the study 3 days
Dosage Minimum bactericidal concentration: 1-1.2 mg/mL
  • Positive control
  • Negative control
  • Treatment group
Parameters analysed Anti-microbial activity by agar-well diffusion method
Q. infectoria gall extracts can be used against toothache and gingivitis.
Visible benefits
The extract has antimicrobial activity against oral bacteria which are known to cause dental caries and periodontitis, comparable with positive control.
Quercus infectoria extract

Standardized Pure 100:1 Quercus infectoria Oak Gall Manjakani Powder Extract

  • Pure 100:1 Oak Gall Manjakani Quercus Infectoria Extract
  • 60-75% Tannic Acid: Gallotannin (Bio-active Phytonutrient)
  • Ultrasonic hot water extraction
  • Scientifically tested
  • Maintain vaginal health
  • Firming and tightening
  • General health and beauty
  • Teeth and bone health