Hair Growth
Support for Women

For thicker, fuller hair
through every stage of life*
Shop Now

Reboot Your Roots

WILLO is formulated with powerful
biotin complex
Lustriva®. When taken daily,
women saw significant
improvement in
hair thickness in just 3 weeks

WILLO’s ingredients support:

Shop Now

In a clinical study using an ingredient found in WILLO Hair Growth

In a clinical study using an ingredient found in WILLO Hair Growth

Hair Growth
Support Capsules

Formulated with enhanced-bioavailable biotin
complex Lustriva® for thicker, fuller hair.*

Biotin Complex LUSTRIVA®

Clinically proven to support: Healthy Hair Growth*, Thicker & Fuller Hair*

Clinically-studied & patented Lustriva® is an enhanced-bioavailable complex of biotin (a vital B vitamin involved in the synthesis of hair, skin & nails), silicon (a mineral found in healthy hair, skin & nails) & arginine (an essential amino acid involved in healthy blood flow). Clinical results of Lustriva® studies include:

3 Weeks

Significant improvement
hair thickness☨


More soluble than
found in most
beauty products

Saw Palmetto Extract

Saw palmetto extract has been shown
to help manage our body’s levels of DHT
(a hormone known to cause hair follicles
to shrink), thus contributing to healthy
hair follicles.

Holy Basil

An adaptogen traditionally
used to support healthy
stress management.

Hair & Scalp Nutrients

A blend of vitamins & minerals that help
fill nutrient deficiencies that may cause
thinning, brittle hair.* This blend includes
vitamins B12, C, D3 & E, folate, iron,
selenium & zinc.

If you check any of these boxes,
WILLO can help:

  • Your hair is thinning*
  • Hair loss runs in your family*
  • You have damaged hair
    or split ends*
  • You’ve experienced hair
    falling out*

Here's how to get the most out of WILLO:


Adults take 2 capsules once daily with water.


Start seeing results in just 3 weeks. For best & sustained results, keep taking daily for 3 months and beyond.

Featured in:

Asked Questions

What do WILLO Hair Growth capsules do?
    WILLO’s ingredients support:

  • Thicker & Fuller Hair*

  • Healthy Hair Growth*

  • Hair Follicle Health*

  • Stress Management*
Who can take WILLO Hair Growth capsules?
WILLO Hair Growth is safe for ages 18 and up.
Can I take WILLO Hair Growth capsules with other O Positiv products?
We formulate our products to be safely taken together, in order to help you achieve your health goals!
Can WILLO Hair Growth capsules be taken with prescription medication?
Please consult your physician before taking WILLO Hair Growth Capsules if you have a medical condition, or are taking any medications.

Do not use if the cap seal is broken or missing. Keep out of reach of children.
Can men take WILLO Hair Growth Capsules?
WILLO was formulated with ingredients shown to improve hair growth in women, and it is safe for men to take.

Please note that while the clinical study on one of WILLO’s ingredients (Lustriva™) was performed solely on women, other ingredients in WILLO may be beneficial for male hair growth.
How do I take WILLO Hair Growth capsules?
Take 2 capsules once daily, or as recommended by your physician.
How long does it take for WILLO Hair Growth capsules to work?
We recommend taking our capsules for at least 12 weeks for full effect, though many may feel benefits as soon as 3 weeks. Results may vary.
Is my credit card information secure?
Yes, all credit cards are secured by Shopify, Paypal, or Amazon.
Where do you ship?
Currently only shipping within the USA, but we’re going global soon. Hang tight!
How much does shipping cost?
Shipping is free for subscriptions! For all other orders, shipping charges vary per location. You’ll see your individual shipping costs calculated at checkout.
How do I track my package?
Need to know if your vitamins are on the way? Tracking information should have been sent via email upon placing your order. If not, shoot us an email at
I didn’t receive a shipping or order confirmation, help!
Email us at We'll figure it out for ya!
What’s the happiness guarantee?
We want to empower you to try O Positiv products risk-free for two months to help you find what your body needs!
Are O Positiv vitamins FDA approved?
By law, the FDA does not approve dietary supplements. But, the FDA does regulate both dietary supplements and dietary ingredients. At O Positiv, we follow what the FDA established for dietary supplements in 2007 called "current Good Manufacturing Practice" (cGMP) regulations requiring that manufacturers evaluate their products through testing identity, purity, strength, and composition. We not only tested for stability with our manufacturers, but also did 3rd-party testing for potency of active ingredients, adulterants like heavy metals and microbes, allergens, rancidity and other unwanted contaminants.
Are there any artificial flavors, colors, or dyes in O Positiv vitamins?
Nope! These vitamins are au natural - made from vegan, non-GMO, and gluten-free ingredients.
Where are O Positiv vitamins manufactured?
O POSITIV vitamins are formulated, manufactured, and packed with care right here in the USA.

The Daily Vitamin

Get a daily serving of period hacks,
self-care practices,
and frequently asked
health questions on our blog.

Your Secret Guide to Healthy Hair After 40

Your Secret Guide to Healthy Hair After 40

Read More
What Do Hormones Have to Do with Hair Loss?

What Do Hormones Have to Do with Hair Loss?

Read More
Can Stress Cause Hair Loss?

Can Stress Cause Hair Loss?

Read More