Bio and Nano Technology Research Solutions


Zystein is the home of the best all natural healthcare supplements, the top rated all-natural skin care products, and other life sciences products. 

ZYSTEIN, LLC is a manufacturer of the best natural skin care products, top rated all-natural skin care products, all-natural healthcare supplements, and other all-natural life sciences products. It is also a research and development company with focus in biotechnology and nanotechnology for life sciences.

ZYSTEIN, LLC is a premier provider of bio-conjugated nanoparticles and biodegradable and biocompatible nanoparticles for theranostic and drug delivery and carrier of active ingredient.   We are a unique bio+nano company with extensive experience and expertise in nano-enabled biologic materials, topical creams, gels, and ointments. 

We offer nano encapsulation of plant extracts, nutrients, essential oils, minerals, vitamins, biomolecules, small molecules, and other molecules that puts us on the leading edge of natural and organic nanoparticles.   Zystein has grown via commercialization and development of in-house IP in Agriculture, Animal Health, Medical, Pharmaceutical , Skin Care, and antimicrobial applications.  


ZYSTEIN can empower your research & development with cutting edge bio+nano materials.  Various research services are offered to customers in the life sciences. These include:

  • Nanoliposomes for active ingredient encapsulation

  • Natural and organic nanoparticles

  • Protein conjugation to nanoparticles, enzymes, and/or other molecules

  • DNA conjugations to nanoparticles and/or proteins

  • Nanoparticle conjugations to various molecules

  • Nanoparticle and biomolecule depositions on solid surfaces (i.e., glass slides, gold surfaces, chromatographic strips, etc)

  • Evaluations of biocompatibility of nanomaterials and other research materials

  • New assay development and evaluation using absorbance, fluorescence, and electrochemical transduction methods

  • Testing of new products

  • Consulting services


ZYSTEIN benefits greatly from its proximity and access to World Class nano facilities at the University of Arkansas (UofA) and the FDA’s Technology Development Center at NCTR (National Center for Toxicological Research). The World Class nano microscopy resources at the UofA alone (https://microscopy.uark.edu/instruments/)  ensure the quality of nanoparticles that we supply to our customers. 

ZYSTEIN also offers and performs the following services:

  • new assay development

  • development of nanoparticles for theranostics applications,

  • smart drug delivery

  • technology evaluation/testing

  • new product evaluation

  • testing of product prototypes

We offer these services with the highest research quality for cutting edge technology.  Our internal R&D at ZYSTEIN, LLC develops new technologies with partners and collaborators worldwide.  


  • To offer high quality research services in biotechnology and nanotechnology that will support clients in bringing  new technologies to market rapidly.

  • To accomplish internal new technology R&D and product developments involving biotechnology and nanotechnology.

  • To develop products that make use only of plant oils, plant extracts, together with biodegradable biocompatible nanoparticles for health and life sciences applications. 


The Company

Zystein, LLC is located in Fayetteville, Arkansas. It was founded in February, 2013. The company offers:

1) Research services

2) Internal R & D

3) Small Scale Product manufacturing up to 60,000 units a month.

We are the brain child of Dr. Zoraida P. Aguilar and her experiences.  Dr. Aguilar’s research focus has evolved from water pollution to mutation to waste management, then into microfabrication, microfluidics, and biological assay developments while earning her PhD.   Soon after earning her PhD, she was focused upon Nano-bio-sensors, nanocarriers and nano capsules for vaccine/drug delivery, medical devices, instrument miniaturization, and nanoscale materials.  Dr. Aguilar’s recent life sciences research has focused upon nanomaterials and electrochemistry utilization in medicine, in vitro diagnostics, food, and environmental segments to develop new drug/vaccine delivery, in vitro diagnostics, skin care formulations, environmental monitoring, pet care, home care, water purification-disinfection-monitoring, solar energy, and the construction industry.  She has launched products consisting of plant-based nanomaterials enhanced dermal nutrition skin care products, nanomaterials detection kits, and health care products.

Dr. Aguilar has co-authored nine (9) patents and patent applications for use in numerous market segments.  This natural evolution utilized the areas of knowledge that she acquired from her BS Chemistry, MS Biochemistry, and PhD in Analytical Chemistry plus two years of Molecular Biology and genetic engineering.  Her rare blend of training created unique problem solving that she utilized as she directed and conducted R&D using innovative technology.  She has been very skilled in developing technology with an eye toward commercialization and a benefit to humanity.   Her unique development of new technologies led to federal funded research that acquired more than $6.5 M dollars during the last 12 years after earning her PhD.

Please review her papers at Click here. 

For consulting and other services, contact us at technical@zystein.com.
References: Nanomaterials for Medical Applications at 



 Existing Products

Zystein All-Natural Health Care Products

The Zystein Health Care Products are science-based alternative approaches to health care. All-natural dietary supplements are recommended to replace the man-made synthetic counterparts. Zystein's dietary supplements come from plants, herbs, fish, algae, seaweeds, and/or chicken. These include multivitamins, minerals, amino acids, and nutrients that are essential to a healthy lifestyle. These are available in capsules, tinctures, gummy candies, and powders. Our current health care products include the following:

Amazing Pain Cream
Amazing Miracle  Cream
Skin Cancer Blend
Blood Pressure Support
Happy Kidney
Collagen Caps
Anti-Insect Bite Cream
Anti-Insect Bite Spray
Natural Hair-Regrow
Firming Peptides
Nerve Pain relief
Essential oil Diffuser

Zysteinoffers all natural healthcare supplements and healthcare products that are made only of natural materials. The products are affordable and are made of the finest ingredients in a facility that complies with good manufacturing practices. For more informationClick here

ZIDZY™ Natural Skin Care Products

Zystein has developed the ZIDZY™ Natural Skin Care products. The Zidzy™ Products are nutritional supplements to nourish your skin and help prevent the appearance and signs of aging. These are made only of natural materials.  For more information Click here. ​ 

To place an order, go HERE.                                                           

For all inquiries, send an email to: info@zidzy.com

Zystein Pet Care Products

The Zystein Pet Care Products are designed  with the health of our pets in mind. These pet care products are made of specially chosen plant extracts and essential oils to bring the best  healthcare possible for our fury family members. For nore information, Click here.

Zystein Reagents

Zystein offers reagents that are necessary for studies that focus on  biotechnology and nanotechnology for the life sciences. These reagents include nanomaterials, antibodies, antigens, enzymes, and buffers that are affordable, sterile and provided with at least one year factory warranty. For more information,click here.

For all inquiries, send an email to: info@zystein.com