The complete guide to laboratory services, chemistry, repair and upgrading wigs at Racheli Keren's salon

Mar 8
7 min read

Updated: Mar 8

A quality wig made of natural hair is a significant financial and aesthetic investment, designed to accompany a woman for many years. However, during the life of the wig (which can reach 5 and even 10 years with proper care), changes may occur - both in the client's physiological structure and in her aesthetic needs. The "Rachel Keren" salon, which has a team of 12 professional employees, provides a full range of services that includes building, upgrading, repairing and customizing wigs, to ensure that the wig always fits perfectly and looks up-to-date. Below are a number of wig repair and upgrading operations that can be performed at Rachel's salon:

Maybe you bought an amazing wig a year ago and now it feels loose, or maybe you bought a second-hand wig and it presses unbearably on your temples. A wig that doesn’t fit properly isn’t just a matter of comfort – it directly affects your natural look. If the wig is too big, it will look puffy and “fringed”; if it’s too small, your hairline will recede. This is where our lab’s expertise in performing

When does the need to change the size of the wig arise?

Our head is not a static organ, and there are several factors that affect how the wig sits:

Weight changes:
Change in the amount of natural hair:
Natural wear and tear of the elastic:
For oncology patients, after the hair grows back, in cases of curly and swollen hair, re-adjustment of the size and sometimes even replacement of the mesh is required. This means untangling the wig and rebuilding it on an L mesh.

How do we perform wig sizing in the lab?

This is a surgical process for anything that requires millimeter precision:

Anatomical measurements:
Wig reduction:
Wig Extension:

One of the most important services in wig maintenance is adjusting the size of the wig cap to the client's head. Although wigs come with internal adjustment mechanisms such as "closures" (stretch bands) and a velvet tape to prevent slipping, professional intervention is sometimes required to change the size of the cap itself.

When is a wig reduction or enlargement required?

Operations to enlarge or reduce the wig are professional jobs that require precise priming and sewing of the net, and their cost in the salon is 500 NIS.

Many women who own an old, tired wig or one whose design is no longer to their liking tend to think that they have to purchase a completely new wig. Racheli Keren's vision offers a smart and financially viable alternative: there is no obligation to purchase a new wig. Existing wigs –

Through a series of professional treatments, you can replace the wig's mesh, fill in missing hair, change the hairstyle, or add chic and up-to-date shades that will restore its shine and style. If the wig is torn in the delicate lace area, there is no need to throw it away; a professional lace tear can be repaired for 1,000 to 1,500 NIS, depending on the complexity of the work.

We all have it in our closet: the expensive wig we bought a few years ago, its hair is still in great condition, but something is no longer working. Maybe the hairline looks too stiff, maybe the mesh no longer fits well, or it just feels "old-fashioned" compared to today's natural look. The good news is that you really don't have to rush out and buy a new one. The world of

The most popular and significant upgrade today in our lab is adding a "lace front" to an existing wig.

How does it work?
For wigs without bangs, there is no need to remove anything. Simply add a regular lace front as a continuation of the bangs, which allows for a natural look at the forehead line. The forehead line is the failure point for laceless wigs, which is exactly where they look like bangs, and adding a lace front is the solution for a perfect natural look.
The result:

When should you consider renewing and upgrading wigs?

When the hair is still of good quality:
Change in facial or head structure:
Desire for an updated look:

The most requested and popular upgrade is adding a lace net to existing wigs that don't look natural in the front. Many older wigs are constructed with a stiff front that causes hair to fall over the forehead and give a "fringe" look.

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Link to a website showing lace addition work before and after:

Sometimes, our relationship with our wig is complex: we adore the quality of the hair, the exact shade, and the way it flatters us, but the feeling of a full wig on our entire head starts to feel “too much.” Maybe it’s because of the Israeli heat, maybe because your natural hair has grown out a little and you want to blend it in, or you’re simply looking for a lighter look. This is where the magic of our lab comes in:

In this process, we take your full wig and perform a precise “analysis” on it. We break down the excess parts of the net (the tresses and sides) and leave only the upper part – the “top” (the skin or lace). Then, we process the edges, add delicate clips and adjust to the structure of your head.

In the above case, why should you consider turning a wig into a topper?

Maximize your investment
Comfort and ventilation
Natural combination

The work process in Racheli Keren's laboratory

Unlike a regular repair,

Is every wig suitable for this change?

In most cases – yes. If the top of the wig (the trail and crown) is in good condition, the transformation can be performed. We recommend coming to us at BSR Towers Petah Tikva for a short consultation, where we can examine your existing wig and tell you exactly what it will look like as a new, designed topper.

One of the salon's most exciting services is the ability to perform a complete transformation of the wig structure. A woman who has a full wig (whether skin or top lace) and no longer wishes to wear it in its entirety can transform it into a lightweight and useful "topper unit." In this process, the team disassembles the wig, cuts off the unnecessary "cap" part, leaving only the high-quality top part of the topper. Then, the edges are processed, rows of hair extensions (tresses) are added to create volume around it, and hidden, high-quality "tick-tock" pins are sewn in. The result is a lightweight filling unit that connects to the natural hair. The cost of this work is priced as renewal and reconstruction, and starts at 1,500 NIS (depending on complexity). If it is necessary to build a completely new network and create the wig from scratch, the price will be 1,500 NIS and will take about 10-14 working days.

In addition to mechanical repairs, the salon offers advanced chemical services to revive the wig's color. The virgin hair the salon uses responds wonderfully to color work. Services provided include:

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Differences in shades and color – why are blonde wigs more expensive and how do you care for them?

In the world of wigs, color is not just a matter of personal taste, but a direct indicator of the quality and complexity of the raw material. If you’ve ever wondered why

The rarity of the raw material: Why is blonde the "gold" of hair?

Most of the world's virgin hair is collected in dark shades (brown and black). Naturally light hair, that is, hair that has never been colored or bleached, is very rare. The lighter the hair is originally, the more expensive it is to obtain.

The professional challenge:

The art of painting in the laboratory

Unlike dyeing hair on the head, dyeing a wig requires a completely different expertise. At Rachel Keren's lab, we create the blonde in layers:

Shade accuracy:
Protecting the "cuticle":

How do you maintain blonde wigs at home?

Blonde is a sensitive shade that requires special maintenance so that it does not oxidize and lose its shine:

Using dedicated products:
Heat protection:
Moisture:

One of the main reasons why women turn to color renewal services is the "oxidation phenomenon." In the Israeli climate, the wig is exposed to strong UV radiation from the sun. The ultraviolet radiation acts on the hair's pigments and breaks them down. The result? Hair that was originally a cool brown or grayish blonde begins to fade and takes on unwanted shades of "rust" - reddish, coppery orange or mustard yellow.

Our solution - "Gloss" washes and root renewal:

The art of shades and ombre (

Beyond regular maintenance, many women want to upgrade their wig from a fashion perspective. Trends like "ombre" (gradual transition of shades from dark roots to light ends), "balayage" or interwoven ("mottled") highlights give the wig movement, dimension, and lightness that brightens the face.

However, when it comes to performing lightening on quality wigs, the challenge is twofold: The iron rule at Rachel Keren Salon is to use only

The Complexity of Lightening Virgin Hair:

Due to this professional complexity, lightening work, adding shades, or creating an ombre is priced at 1,500 NIS for very long wigs and 1,800 NIS for very long wigs.

Below is a professional explanation for neutralizing a coppery hue: How does washing "gloss" save your wig?

Even the highest quality luxury wigs, made from 100% virgin human hair, are ultimately affected by environmental conditions. One of the most common phenomena is the change in the shade of the wig over time, when a natural, cool or blonde color begins to fade and take on unwanted shades of "rust", reddish or orange-copper.

Why does this happen? Oxidation

(Note: To prevent this phenomenon in advance, it is recommended to use dedicated protective hair sprays before sun exposure, or to periodically wash at home with a purple/blue shampoo that neutralizes coppery tones).

The solution in the laboratory: a neutralizing "gloss" wash

Why turn your hair into an extension?
1. Perfect Match:
2. Sentimental value:
3. Financial savings:
How does the process work in the laboratory?
Creating
- Tidying and cleaning:
- Stitching of terraces:
- Attaching the clips:
Who is this suitable for?
The service is suitable for anyone who has cut a braid 30 cm or longer. This is an amazing solution for women who want to upgrade their short haircut for special occasions, or for girls who want to maintain their long, beloved look even after a fresh haircut.