Kester Black Rest and Repair Nail Serum

Use this nightly routine to restore your nails while you sleep. It takes just a few minutes, but the results build fast.

Apply Rest & Repair Serum to clean, bare nails
Follow with Self Love Oil and massage in well
Leave overnight and rinse off in the morning
Repeat every night for 4–6 weeks or until nails look smooth and uniform
Stop using nail polish, remover, hand sanitiser and other drying products. Wear gloves for chores to avoid water and chemical exposure.

Adaptogenic Mushroom Extract
Horsetail Leaf Extract
Radish Root Ferment
Lily Extract
Butylene Glycol
Green Tea Extract
Lactobacillus Ferment
Vitamin B5
Glycerin
Saké Extract
Vitamin e
Sweet Almond oil

Aqua (Water), Glycerin, Prunus Amygdalus (Sweet Almond) Dulcis Oil, Propanediol, Xanthan Gum, Phenoxyethanol, Panthenol, Butylene Glycol, Polyglyceryl-3 Diisostearate, Camellia Sinensis Leaf Extract, Equisetum Arvense (Horsetail) Leaf Extract, Polysorbate 20, Lactobacillus/Rice Ferment Filtrate, Tricholoma Matsutake Extract, Ethylhexylglycerin, Leuconostoc/Radish Root Ferment, Helianthus Annuus (Sunflower) Seed Oil, Tocopherol, Parfum (Fragrance), Ophiopogon Japonicus Root Extract, Pantolactone, Lactic Acid, Sodium Benzoate, Sodium Hydroxide.

Over 97% natural. Vegan. Made in Australia.

Why are my nails soft and peeling/flaking?
This can be the result of too little or too much moisture. The former from repeatedly getting the nails wet and then drying them, and the latter from prolonged water exposure during activities like household chores.

Damage, peeling and flaking might also be the result of one-too-many acrylic manicures or ripping your gel mani off.

Weak nails can also be associated with a deficiency in B vitamins, calcium, iron or fatty acids.

Why does water exposure cause weak nails?
Nails are porous and absorb water readily. When nails absorb water, they expand, and when they dry out, they contract. Repeated cycles of expansion and contraction weaken the nail structure over time, leading to brittleness and peeling.

Water alone is not the only culprit. Harsh detergents, cleaning agents and solvents often used in household chores can further strip nails of their natural oils and weaken them.

To maintain strong nails, it's essential to strike a balance between keeping them adequately hydrated and preventing excessive exposure to water and harsh chemicals. Moisturising and protecting your nails can help mitigate the negative effects of water exposure.

What else can I do to stop flaking/peeling?
Stop using products that could be dehydrating your nails (i.e. nail polish, nail polish remover, hand sanitiser, basically anything solvent/alcohol based) and minimise exposure to water and chemicals (wear gloves while doing the dishes and cleaning).

Will this product help my nails post chemotherapy?
We’re very sorry to hear you have been going through chemotherapy treatment and our team sends their best wishes to you.

Unfortunately, chemotherapy can have a range of long lasting adverse effects on nail health for several reasons:

Cell Division Inhibition: Chemotherapy drugs target rapidly dividing cells, including cancer cells. Unfortunately, the drugs can also affect the rapidly dividing cells in the nail matrix, where new nail cells are formed. This interference with nail cell production can lead to abnormal nail growth and changes in texture.

Nail Matrix Damage: The nail matrix, located under the base of the nail, is particularly vulnerable to chemotherapy-induced damage. Damage to the nail matrix can result in the formation of ridges, pitting and discolouration on the nails.

Dryness and Brittleness: Chemotherapy can disrupt the body's natural oil production, leading to dry and brittle nails. These weakened nails are more susceptible to cracking, splitting and breaking.

It's important to note that not all chemotherapy drugs have the same impact on nail health, and the severity of these effects can vary from person to person. Patients undergoing chemotherapy should discuss potential nail-related side effects with their healthcare team and explore strategies for managing and protecting their nail health during treatment.

It’s unlikely that any topical product will assist with your nails after such a strong drug and your nails may never recover.

Can I overdo it?
While dry nails can benefit from regular moisturising, over hydration can also be an issue. Excessive moisture can lead to soft, weak nails that are more prone to bending and breaking.

Keep a close eye on your nails' response to regular use, adjusting frequency or product if any adverse effects are observed.

While hydrating nail treatments can be a valuable part of nail care, individual needs may vary, so it's advisable to find a routine that suits your specific nail type and preferences.

We ship a mix of Sable Boutique items and pieces from our brand friends.

Sable Boutique

$10 shipping on alll orders

Selected Brand Friends

Some items ship directly from our brand friends and have their own shipping rates:

Madam Fancy Pants

• Free shipping over $100
• $8 shipping on orders $100 and under

Tap Health

• $4.50 Standard
• $10.50 Rural
  
  
  If your order includes items from both Sable Boutique and our brand friends, they may arrive separately and shipping is calculated independently for each.

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Unfortunately, counterfeit and expired beauty products are a growing concern online. Purchasing from unauthorised sellers can put you at risk of receiving ineffective — or even unsafe — items.

Here’s why Sable Boutique is your trusted destination for professional hair and beauty essentials:

• Guaranteed Authenticity: We source exclusively from official brand distributors, ensuring every product you receive is 100% genuine.
  
• Fresh Inventory: Our regular shipments mean you’re getting the latest formulations with optimal shelf life.
  
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Shop with confidence knowing that every purchase from Sable Boutique supports your hair and skin with trusted, salon-grade quality — straight from the source.