Déodorant maison/en

Low-tech Lab

https://wiki.lowtechlab.org/wiki/D%C3%A9odorant_maison/en

Dernière modification le 16/07/2024

Difficulté

Very easy Très facile

Durée

10 minute(s) minute(s)

Coût

1 EUR (€)

Description

Quick, economical and environmentally-friendly recipes for homemade deodorant.

Sommaire

déo, déodorant solide, déodorant, zero waste, zéro déchet, Nomade des Mers, déodorant maison, DIY

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Introduction

Deodorants are products that many of us use on a daily basis. But industrial deodorants are increasingly controversial. The reason they are regularly singled out for criticism is that most of them contain chemical substances, some of which are potentially carcinogenic, allergenic or the cause of hormonal disorders. Don't hesitate to visit this consumer site to find out how the deodorant you are currently using is rated.

Among the high-risk chemical compounds, two families are particularly controversial: aluminium salts and parabens.

- Aluminium chlorohydrate: this is the name given to the aluminium salts in your deodorant formula. These micro-particles have the property of closing the pores through which sweat flows, and therefore "'stopping the production of perspiration'". Apart from the fact that blocking this phenomenon, and therefore preventing the body's thermal self-regulation, is '"dangerous'", aluminium salts have been suspected by several studies of causing breast cancer.

- parabens are the preservatives added to most cosmetic, pharmaceutical and industrial products. Studies have been underway for years to verify their harmful effects on the skin and their possible involvement in the development of breast cancer, due to their oestrogenic properties (endocrine disruptors).

If armpit odour is sometimes unpleasant, it's because these "folds" are a particularly favourable environment for the development of bacteria, which are responsible for these odours. Rather than blocking perspiration, it's better to prevent '"the development of these bacteria'" by using natural antibacterial products.

This tutorial gives you 5 healthy, practical, effective, economical and environmentally-friendly recipes for making your own homemade deodorant.

Solid versions:'

1. Very economical, containing just 3 ingredients. Its only drawback is that it becomes liquid above 25°C (coconut oil) and tends to go out of phase if not kept in a cool place. At home, it may be worth getting into the habit of keeping it in a cool place.
2. Same base as above, to which we add a 4th ingredient, beeswax (beeswax or vegetable wax). As it doesn't melt below 63°C, it allows the deodorant to stay put even when it's very hot.

Liquid versions (spray, roll or drops):

1. Economical, local and minimalist (2 ingredients) based on bicarbonate and water
2. Equally interesting, based on vinegar and water
3. Semi-liquid recipe suitable for roll-ons (3 ingredients)

Youtube

Matériaux

Deodorant balsam (Winter- liquid above 25°C)

• 4 tablespoons / 50g coconut oil
• 2 tbsp / 25g sodium bicarbonate (as fine as possible)
• 2 tbsp / 25g cornstarch or arrowroot
• 10 drops of palmarosa essential oil

Solid deodorant (Summer)

• 3 tablespoons / 40g coconut oil
• 10g beeswax or 5g candelilla wax)
• 2 tbsp / 25g sodium bicarbonate (as fine as possible)
• 2 tablespoons / 25g cornstarch or arrowroot
• 10 drops of palmarosa essential oil

For an even more moisturising solid deodorant, replace the 3 tablespoons of coconut oil with 2 tablespoons of coconut oil and 1 tablespoon of shea butter.

Bicarbonate liquid deodorant

• Approximately 1/8th the volume of the bicarbonate spray bottle
• Water to top it off
• Optional: 4-8 drops of tea-tree or palmarosa essential oil

Vinegar liquid deodorant

• 50% by volume cider vinegar (or 25% white vinegar)
• 50% water by volume (or 75% water)
• Optional: 4-8 drops of tea-tree or palmarosa essential oil

Roll-on deodorant

• 1 teaspoon very fine bicarbonate of soda
• 1/2 teaspoon clay
• 1 pinch cornflour or guar gum (for the gel effect)
• 50% lime water
• 50% water
• Optional: 4-8 drops of tea-tree or palmarosa essential oil

Outils

• Glass jars for storing ingredients
• Salad bowl for mixing
• Soup spoon
• Coffee spoon
• Small glass jar for storing deodorant
• Scale

Étape 1 - Details of ingredients

• Food-grade sodium bicarbonate : Used here for its deodorising action, it can be used for a multitude of purposes (cleaning product, deodoriser, heartburn remover, teeth whitener, etc.). Made from limestone and salt. May cause irritation in some people. Can be replaced with white clay in this case. Cost ~3-4 euros/kg
• Cider vinegar or white vinegar : used as a deodorant. Has the ability to remove existing odours and reduce the strength of odour-producing bacteria.

• Corn starch or arrow-root (= maranta rhizome starch): these are two natural absorbents. They are also used to bind the product.
• Coconut oil: Used here for its moisturising and antibacterial properties.

Use with parsimony! This product comes from far away (France) and therefore has a significant carbon footprint. What's more, coconuts are often harvested by monkeys, who are then held captive and mistreated. (See linked article)

• Tea Tree essential oil: used for its antibacterial properties and strong odour to delay and then mask the "bad smells" of perspiration.

• Palmarosa essential oil: Recommended for its antibacterial and antifungal properties.

Use sparingly! The production of essential oils requires an enormous amount of natural resources. What's more, they are not suitable for everyone and can be allergenic. Test a small amount on the wrist before use, then wait 2 days. Not recommended for pregnant women or children. Don't hesitate to consult this guide: https://lestrappeus.es/huiles-essentielles-bebe-et-famille-friendly/

• Beeswax: Used for both its hydrophobic [1] and antibacterial properties, its high melting point (63°C) means that the deodorant remains solid in all circumstances.

Étape 2 - Manufacture of coconut oil-based deodorants

Deodorant balm (winter) :

• Add the liquid coconut oil (previously melted near a heat source if necessary) to the sodium bicarbonate and cornflour. Add 10 drops of palmarosa essential oil.
• Mix everything well to make it homogeneous.
• Pour into a small glass jar/container.
• Place in the fridge to set.

Store at room temperature. Apply with a finger under the armpits.

Étape 3 - Making deodorant with bicarbonate and water

Using a small spray bottle means you can keep your deodorant handy all day long if you need it.

• Dissoudre un peu de bicarbonate dans l'eau. Attention à ne pas atteindre la saturation (limite où le bicarbonate ne se dissout plus) car la recristalisation risque de boucher le pulvérisateur. Si jamais vous atteignez ce cap, rajoutez un peu d'eau.
• Compléter le volume du pulvérisateur avec ce liquide
• ajouter en option 4-8 gouttes d'huile essentielle de tea tree ou palmarosa (ou autre suivant vos préférences). Pour une meilleure répartition de l'huile essentielle on peut ajouter un lichette d'alcool (qui servira de liant, les huille essentielles n'étant pas miscibles dans l'eau)

Pour parfumer vous pouvez remplacer l'eau par de l'hydrolat

Bien secouer avant utilisation.

Conservation plusieures semaines/mois sans besoin de frigo.

Étape 4 - Fabrication du déodorant à base de vinaigre et d'eau

Prendre un petit format de vaporisateur permet de garder à portée de main toute la journée le déodorant en cas de besoins.

• Verser dans un flacon 50% d'eau et 50% de vinaigre de cidre
• OU verser 25% de vinaigre blanc et 75% de volume en eau
• ajouter en option 4-8 gouttes d'huile essentielle de tea tree ou palmarosa (ou autre suivant vos préférences).

Pour parfumer vous pouvez remplacer l'eau par de l'hydrolat.

Attention, la présence d'acide et d'alcool du vinaigre peut irriter après rasage ou épilation.

Conservation plusieures semaines/mois sans besoin de frigo.

Étape 5 - Fabrication du déodorant roll-on

Dans un petit bol mélanger les ingrédients :

• 1 càc de bicarbonate très fin
• 1/2 càc d'argile
• 1 pincée de maïzena ou gomme guar
• En option 2 gouttes d'huile essentielle
• après avoir mélangé les ingrédients secs ajouter selon le volume du roll, 50% d'eau et 50% d'eau de chaux.

Bien agiter avant utilisation.

Conservation plusieures semaines/mois sans besoin de frigo.

Notes et références

-Etude sur les risques de sels d'aluminium : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5514401/

- Dossier santé sur les déodorants et autres recettes  : https://amelioretasante.com/comment-faire-un-deodorant-naturel/

- Huile de coco, les dessous de la récolte: https://lacoquetteethique.com/protection-animale/huile-de-coco-ecologie-vegan/

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