New ✨
IN & OUT Pouch
Nail care

IN & OUT Pouch

The personalised IN & OUT duo for healthy nails, all year round!

To find out the best base coat for your nail type,
complete our analysis by clicking here!

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Only 998 items in stock!

IN & OUT Pouch

Only 998 items in stock!
Free shippingwhen you spend £39 or more
Secure paymentCredit card and Paypal
Eco-friendly packagingDelivered in 100% corn-starch packaging chips


  • Up to 84% bio-sourced ingredients
    Plant-based ingredients extracted from natural, renewable sources
  • Made in France
    Products made in France
  • Vegan
    Our aim is to develop products without using ingredients that come from animals or the farming of animals
  • 12-free
    Green Flash
  • Eco-friendly packaging
    Recyclable packaging, FSC cardboard and biodegradable packing peanuts
  • No toxic ingredients
    Products formulated based on a strict blacklist

Kit content

  • Nail Boost

    Nail Boost

  • The treatment base coat of your choice

    The treatment base coat of your choice

  • Cuticle Remover

    Cuticle Remover

  • Green Oil

    Green Oil

  • Steel cuticle pusher

    Steel cuticle pusher

  • Emery board for natural nails 100/180

    Emery board for natural nails 100/180

  • 3-way polisher

    3-way polisher




The perfect products for your nail care routine, ensuring healthy nails all year round!

A complete kit for optimal results, as it treats your nails from the inside and outside. Perfectly combines the targeted action of your favourite nail care products with the overall effectiveness of food supplements specially designed to revitalise your nails and boost their growth. A new In & Out routine that you won't want to be without!


  • A food supplement developed to meet your needs
  • GOTS-certified organic cotton
  • Bio-sourced formulas
  • Recyclable eco-designed packaging

How to use Nail Boost food supplements?

As a treatment, take 4 capsules a day (for no more than 3 months)
For maintenance, take 2 capsules a day (for no more than 6 months)

View ingredients

Protocol We tell you everything!

  1. File your nails into your desired shape
  2. Gently buff each nail for 5 seconds in the direction of growth
  3. Use the cuticle remover and cuticle pusher to push back the cuticles
  1. Apply Green Oil to the surface of the nail
  2. Remove the oil from the surface of the nail with a gentle nail polish remover
  3. Use the treatment base coat to care for and protect your nails

The word of the teaM

"A tailor-made routine for visibly more beautiful nails"


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FAQ Your questions

Find out the most frequently asked questions for this product

View all questions

It can be used up to once a week.

Yes, the cuticle remover is a water-based gel, so there are no contraindications in terms of applying Green or Green Flash nail polish on top.

Yes, we recommend you always apply a base coat under your polish to help the colour adhere and protect the nail from the pigments.

Green Oil can be applied on and around the nail to deeply nourish it.

You can apply a drop of Green Oil before and after your manicure. If you apply it at the start of your manicure, it is important to remove any oil from the nail with a cotton bud soaked in gentle nail polish remover before applying your polish.

Take a capsule with a glass of water or break it in half and empty the powder into a cold liquid (fruit puree, yoghurt, etc.) as heat will damage the vitamins and minerals.

These food supplements can be taken as a treatment (4 capsules a day) when your nails seem duller and weaker than usual. Take for 3 months for optimal results.

They can also be taken to give your nails an occasional boost when they seem otherwise healthy. In this case, you only need to take 2 capsules a day.

Until the expiry date shown on the product.

View all questions

How do I choose my treatment base coat?

Base S.O.S


  • Regenerates very damaged nails
"The ultimate base coat for very damaged nails"

Green Force


  • Strengthens soft
"The perfect
base coat
for soft nails"

Base 5.5


  • Deeply nourishes the nails
"The perfect
base coat
for healthy nails"

Smoothing Base


  • Evens out ridged or uneven nails
"The perfect
base coat
for ridged nails"

Ingredients Nail care products


Designed for each step of your manicure, our nail care range includes a cuticle remover to make it easier to work on your cuticles, 4 treatment base coats (one for each type of nail) and a green oil chosen for its nourishing properties. 

The result? Long-lasting colour combined with a unique sensory experience!

Our Philosophy

Spotlight on the ingredients

Brewer's yeast

Rich in vitamins and minerals, brewer's yeast strengthens and regenerates brittle nails.


Bamboo sap (bambusa vulgaris sap extract) helps make nails strong and healthy. 


Natural horsetail extract, rich in silica, gives strength and vigour to the nails.

Reviews Our customers talk about us!

Our reviews are collected 2 weeks after any purchase and these are the reviews of verified buyers only

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