4D Hair+ is a hair filler technique that attaches and knots synthetic hair strands to your own hair strands, to give you thicker hair and a fuller scalp. The pain-less and relaxing treatment is ideal for those with thinning scalp or individuals who simply desire thicker hair. Customers can choose from various synthetic hair options ranging from colors to straight or wavy hair to blend naturally and beautifully with their own hair. Made to resemble real hair (99% Similar to real hairs) in looks and texture, the hair fillers are so lightweight that you would not feel a difference wearing them. Because they feel so natural, customers do not need to specially care for the fillers, and can comb, wash, color and perm their hair as often as they need.

4D Hair+ is a hair filler technique that involves the intricate knotting of four synthetic strands of hair to one natural hair strand.

  • A real strand of hair weighs ~0.0003g
  • A strand of synthetic hair weighs 20% of a real strand of hair
  • 4 hairs weigh 80% of ~0.0003g

The duration depends on the number of strands knotted. For 200 strands of hair, it would take an approximated one hour.

The procedure is pain-less.

No special care is required. You can take care of it just like your natural hair.

The hair fillers will stay in place unless your original hair falls out.

They can last up to a year with no special care needed.

Depending on how fast your hair grows, touch-up sessions might be necessary to push the hair filler knots up to the scalp every 2 – 3 months.


  • Treatment is irreversible; knots made during the treatment cannot be undone.
  • You may feel a slight tingle where the knots are made, but it will gradually disappear within a few days.
  • Four strands of synthetic hair will be tied to a strand of real hair, providing coverage and volume. (One strand of synthetic hair is 20% of real hair, 0.00006g)
  • When hair grows, the knots made will grow farther from the roots, and this may cause lack of hair volume. Retouch is thus recommended after 2-3 months (to be charged separately).
  • Synthetic hair can be blown dry, permed, and dyed as normal hair (only from light to dark colors; colored hairs cannot be dyed). During treatment, it is recommended to keep your heat styling tools under 120°C.
  • It is natural to lose 70-100 strands of hair daily. Please do not be alarmed. When shampooing, it is normal to see more hair fall, due to thicker hair from your 4D hair treatment.
  • You will feel a slight sensation from the scalp during shampooing.


  • Avoid using nails during shampooing to minimize damage to your scalp and synthetic hair.
  • Dry your scalp after every hair wash and blow dry your hair using normal/ cool temperature.
  • It is recommended to leave conditioner on hair ends for 3 minutes and coat hair with serum such as Argan oil/ Keratin to prolong its longevity.
  • Avoid using products with high SLS (sodium lauryl sulfate) content as it may cause fizziness to occur. Choose a protein-based shampoo instead. Apply hair treatment and iron at low heat (100 °C) to repair the hair.
  • It is recommended to go for regular Scalp Therapy to maintain the optimum condition of your synthetic hair.
  • Please notify your hair stylist that you have received 4D hair extension during your visit for perming, cutting (no layering) or other hair treatments. Please take precaution with the heat setting.

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