New Offers from Conscious Step, Amazonia, Grants and More
DOUBLE REWARD POINTS ENDS TONIGHT! Make sure you're logged in.
Free Black Chicken Remedies Natural Deodorant With All Orders Over $40! Use code DEO.
Up to 50% Off in our Spring Sale. Ends Tonight!
New Offers! Free ECO. Essential Oil, 20% Off Lavera and more
New Offers: Free Physic Garden Sleep Balm, 20% Off SimplyClean & More!
See All Offers from Inner Atlas, Arepa, Franjos Kitchen & more
Free Inika Mascara with all orders over $79. Today Only!
New Offers: Free Qsilica Rose Quartz Roller, 20% Off Inner Atlas & More!
New Offers: Free Amazonia Vanilla Bar, 20% Off Cheeki & More!
Free Antipodes Face Serum with all orders over $69. Today Only!

Sienna Nail Strengthener (10ml)

  • Toxin Free Nail Strengthener
  • Helps Supports Nail Growth
  • Cruelty Free Accredited
  • Earn 32 Points
86 % of 100
4.3 (7)
In stock
4 x Payments of $8.00 with or with

Sienna Nail Strengthener 10ml

Meet the latest addition to your nail care routine. This nail strengthener helps support and protect nails so they can grow long and strong. It also makes an excellent base coat. 

Sienna nail polishes are water permeable and breathable. They are free from Nanoparticles, Aluminium, Micro-plastics, Formaldehyde, Toluene, DBP, Synthetic Camphor, Formaldehyde Resin, Xylene, Tosylamide or Benzophenone-1.

Cruelty Free Accredited (CCF Australia). Vegan and cruelty free. Made in France. Packaged in a glass bottle with a timber cap.

Check out our blog to learn more about Sienna's new nail polish formulation.

Please note: Due to postal restrictions, nail polish is only available to customers in Australia and New Zealand 

Sienna is a beautiful brand crafting stunning nail polishes, all vegan and cruelty-free. Sienna was first introduced to the local Community at the Byron Bay Markets in 2014. The charming stall with 13 healthy nail polish colours was embraced by the local community and so Sienna was born. Sienna is now available all over the world and we are lucky to be representing the brand here at F&F. Sienna's and F&F's values and ethics align which is what we love!

All the components of Sienna's products are vegan, cruelty-free and free of harsh chemicals. Sienna nail polishes have the cleanest conventional formula on the market with none of the typical toxic chemicals found in many other polishes. The formula used is a healthy and clean alternative, a strong value for the Sienna brand. The nail polish remover is made from soy and 100% renewable sources.


Gently wipe down each nail with nail polish remover to eliminate any oily residue prior to painting. Apply two coats of the nail strengthener. Then apply one coat every other day for a week. After one week, remove it with a nail polish remover (acetone-free), and start the process again.

Can also be applied as a base coat.

The timber cap can be composted. The glass can usually be recycled in kerbside recycling, but it should be cleaned with nail polish remover first.  Check with your local council first. The plastic brush may be recycled, check with your local council. See our recycling 101 blog post for more information.

Sienna also runs a recycling program for nail polish bottles. See their website for more details. 

Thanks for disposing responsibly

Ethyl Acetate (biosourced: derived from sugar cane), Butyl Acetate (biosourced: derived from sugar cane residue or manioc), Nitrocellulose (partially biosourced: derived from cotton), Acetyl Tributyl Citrate (partially biosourced: derived from corn), Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Isopropyl Alcohol, Silica, Trimethylsiloxysilicate, Sucrose Acetate Isobutyrate, Dimethicone, Water (Aqua), Acrylates Copolymer, Glycolic Acid, Dimethyl Sulfone, Dimethyl Oxobenzo Dioxasilane, Titanium Dioxide (CI 77891)


Rating snapshot

Average community rating

86 % of 100
4.3 Based on 7 reviews

Write Your Own Review

Only registered users can write reviews. Please Sign in or create an account
  1. Rating

    Posted on

    I’m no expert on nails

    I have only really started to look after my nails and I have previously only used one nail hardener so don’t use my review to make your decision. I had finally grown all my nails long then I switched to this one and they all seemed to break. That could have just been coincidence but it seemed like the other vegan one I found at the chemist which was MUCH CHEAPER (definitely filled with chemicals though) worked a lot better. I am still going to persevere with this one because I would prefer to use a chemical free one, hope it works.

    Review by


  2. Rating

    Posted on

    Really happy with this product

    My nails were flaking and very unsightly. I wanted a natural product and was delighted when I found this nail strengthener. I have noticed a difference straight away. My nails look well presented with just one coat and when I removed it to re-apply my nails were much improved.

    Review by


  3. Rating

    Posted on

    Worst base I have bought

    Unfortunately, my nails started to peak after I used this product. I have not changed anything on my diet; the only thing I’ve changed is using this product and my nails started to peal. Also, the white colour I bought together with this is of very bad quality, impossible to paint the nails getting an even and smooth look. Won’t definitely buy anything from sienna again. I have a much better experience using other “cleaner” brands like Ere Perez, they have less colour options but the quality is much superior…

    Review by


  4. Rating

    Posted on

    Saving my nails

    I tried taking SNS off myself during lockdown which has resulted in severely ruined nails. This product is amazing. I've been using it for a month now and my nails are looking healthier. Also a great base coat!

    Review by


  5. Rating

    Posted on


    I couldn't believe how well this product worked on my nails! I had just taken gel nails off, and they were weak and breaking easily. This made them look brighter, and they grew longer than they had been in ages! They felt so much stronger as well. I will definitely continue to use this product!

    Review by


  6. Rating

    Posted on


    I have been looking for a toxic free nail harder for 12 months. This polish does not lift or peel resulting in long lasting wear. Nails look hydrated and bright in natural colour. Love it and will continue to use. I am excited to try colour based polish from this brand.

    Review by


  7. Rating

    Posted on

    Nailed it!

    Have been looking for a natural nail strengthener for AGES! I used to use OPI Nail Envy and that was the only thing that would make my nails grow/ not break.
    Have found this to be comparable to OPI!

    Very happy with it- would buy again.

    Review by


Top Sustainable Retailer | Flora & FaunaTop Sustainable Retailer | Flora & Fauna
Telstra Business Award Winner | Flora & FaunaTelstra Business Award Winner | Flora & Fauna
Responsible Retailer of the Year | Flora & FaunaResponsible Retailer of the Year | Flora & Fauna
Best Small Retailer | Flora & FaunaBest Small Retailer | Flora & Fauna
No. 1 Person in Ecommerce | Flora & FaunaNo. 1 Person in Ecommerce | Flora & Fauna
Best Online Retailer | Flora & FaunaBest Online Retailer | Flora & Fauna

Don't Miss Out!

You'll be the first to hear about our latest offers, new arrivals & eco tips

You must login or register to .