TRESSY DELILAH · HAIR EXTENSIONS / SERVICES / EDUCATION
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Find answers to our most frequently asked questions.

How often do I need to maintain my hair extensions?

Every 4-6 weeks to ensure your extensions don't become visible and your hair stays healthy  

Why are my extensions turning pink or green?

Green tones can appear after exposure to copper in water, including pool water. Pink and green discolouration can have different causes. Contact us with photos before using corrective colour or bleach.

  • Hard water Contains alkaline, minerals, and limescale, which can cause discoloration. You can install a filtered shower head to help prevent this. 
  • Sunscreen Containing avobenzone and octocrylene can turn your extensions pink. Opt for a mineral free one and wear your hair off your shoulders.
  • Chlorine water Can strip away the violet color from hair extensions and make them turn orange. You can wet your hair with fresh water, apply conditioner, and braid your hair extensions to create a barrier. 
  • Salt water Can strip the pigments from hair extensions and leave them discolored, dry, and tangled. You should wash your hair immediately after swimming in salty water. 
  • Iron Can leave blonde hair brassy and orange, or even pink.
Can you colour hair extensions?

Our extensions are made from 100% natural premium Russian human hair sourced from young women. They can be coloured using a low-strength oxidant (developer), following a professional colourist’s advice and a strand test first. Natural human hair may also be lightened, but we do not recommend it: this delicate hair is not suitable for harsh chemical treatments, which can cause dryness, breakage or colour changes.

Any colouring, lightening or chemical treatment is undertaken at your own risk. We do not accept responsibility for damage caused by these treatments. This does not affect your statutory rights for an original defect or a product that did not conform to its description.

How long until I can wash my hair after application?

Shampoo / Conditioner are to be used 48 hours AFTER the extensions have been applied.

Which products should I avoid on my hair extensions?

Anything that contains keratin or protein, as this can tend to make the extensions dry & frizzy. Purple Shampoo and colour, can also tend to make the tape slip, due to the high protein. Anything oil based, should be used from the ears down to avoid slippage with Tape Extensions.

TDH hair-care products are designed for hair extensions. Our own care range is being developed to help you care for your extensions at home. Contact us for product availability and advice.

Which products should I use on my hair extensions?

TDH hair-care products are designed for hair extensions. Our own care range is being developed to help you care for your extensions at home. Contact us for product availability and advice.

Discover TDH extension care
How often do I need to brush and wash my hair extensions?

Brush your extensions gently every day, supporting the attachments. Use TDH products designed for hair extensions and follow the product instructions. Keep conditioner and oils away from the attachment points.

How can hair extensions improve my hair?

Hair extensions can be used for many reasons, including:

To add length 
To add volume/thickness 
To fix a bad haircut 
To add highlights or lowlights 
To create a Balayage/Ombre colour without lightening the ends of your own hair

How long does my hair need to be before I can get hair extensions?

The shortest your hair should be for a natural result is approximately 2-3 inches long. If you are unsure whether your hair is long enough please contact us to book a consultation so we can assess this for you or send us a photo so we can let you know what we recommend.

Will hair extensions damage or hurt my hair?

The methods that we specialise in are the most up to date methods on the market. No damage or stress should be causes to your hair / scalp, providing you follow our simple Maintenance Plan. Correct application technique is vital to prevent hair breakage and if not applied correctly they can be painful. This is normally caused by applying them too close to the scalp, an incorrect amount of hair placed in the attachments, or the extensions not lying flat to your head. 

Can I use a hair straighter and curler on my hair extensions?

Yes you can style your Hair Extensions as they are 100% Human Hair. It is recommended to always use a heat protector when styling your Hair Extensions, as you should be with your own hair too.

Are longer hair lengths available?

Longer lengths are available on request, depending on availability. Send us a request via WhatsApp with your preferred length, colour and quantity.

Request longer lengths via WhatsApp
How long does the hair last?

With suitable care, the hair has an expected lifespan of 12–18 months. This depends on washing, styling, wear and maintenance; it is not a guaranteed lifespan.

Hair lifespan is different from the time between maintenance appointments. Your stylist will recommend a schedule for checking, removing or refitting the attachments according to your hair growth and chosen method.

Which keratin tips do you offer?

Our keratin extensions are always supplied as flat tips made with Italian keratin. They can be customised to 1 g, 0.8 g or 0.6 g per strand to suit the desired density and blend.

For a special cut or customised strand weight, please add a note to your order with your requirements. Contact us before ordering if you need help choosing.