How to Ventilate Hair to Silk Top Hair Systems

In our last blog on ventilating hair, we are going to focus on a particularly realistic ventilation technique: injected lace. As the name suggests, this technique can only be used on lace. The injected lace technique gives us silk top hair systems. Despite being a very elaborate and time-consuming ventilation process that produces injected lace hair replacements or silk top hair systems but you will find many of your clients are prepared to wait because of the high degree of realism that silk top systems offer.

Whilst most of you should already be very familiar with silk top hair systems, you may not be aware that silk top hair systems can have either single injected lace or double injected lace. Over the course of this blog, we are going to explore in detail just how it is we make these kinds of injected lace. You will learn how similar and different the two techniques are and by the end, you will understand the kind of appearance they both give which will enable you to give suitable recommendations to your clients.

Single Injected Lace

Let’s begin by looking at how we make single injected lace. We first need to make single flat knots (which we introduced in a previous blog) on the injected lace. We will then use an injected lace needle to pull the hair through the silk top and leave the hair knots under the silk mono. This is why people cannot see any knots on the hair side of the silk top hairpieces. For single injected lace, we only need to pull the long strand of hair through the silk top – the short one will remain behind the silk mono. So, like the hair knots, the short hair strands will remain on both the underside and on the hair side. You will just see the long strands of hair on the hair side. For single injected lace, after all the hair has been knotted as well as pulled through the silk mono, the technician will cut the short return hair of the underside again to leave just a few strands behind. Then, they will brush at least three layers of poly on the bottom to seal the short hairs and hair knots. Even though the returned hair has been cut very short and flat knots loosen easily, the knots will remain secure thanks to the poly.

Double Injected Lace

We make double injected lace in a very similar way. Again, we make single flat knots on the injected lace and then we use an injected lace needle to pull the hair through the silk mono. However, this time, the technician will take both strands of hair and pull them both through the base. So, this time you can see the return hair as well as the long strands of hair on the hair side of the base. Whilst we will still brush a layer of poly once all the hair has been knotted and pulled through, for double injected lace, we will just brush a couple of very thin layers of poly. That’s because the short hair will not be cut shorter again and even though it was pulled through to the other side, it will easily stay secure within the thin layers of poly.


Comparing single and double injected lace, you will see that double injected lace leaves short hair mixed in amongst the long hair. For long-haired women’s hair systems, the short hairs will make the whole hair system look a little untidy. However, since the returned hair is left on the underside of the base of single injected lace, there is none of the short hair of double-injected lace on the hair side. You are, therefore, left with a very fine and tidy look. This adds more quality to the whole piece and single injected lace hair replacements can, therefore, sell for much higher prices.

That said, while single-injected lace gives the kind of realistic appearance that many of your clients will desire, they need to be aware that making single-injected lace is a complicated process and more complicated than double-injected lace. It takes a lot longer to make single-injected lace than it does to make double injected lace. That is why you should only recommend single injected lace to your clients who are set on having a high-end hair system and are prepared to both wait a long time for their silk top hair system and pay a lot for it. But for regular clients, we suggest you order double silk tops for them. First of all, the production time is shorter. Secondly, when thinking about male clients, you will find that double injected lace is more than suitable for men’s hair systems because men tend to want short hair so the short strands of hair will not be visible. Furthermore, double injected lace requires just two layers of poly so the silk top systems will be thinner and more breathable than single injected lace. It is more suitable for men’s hair systems which have shorter and thinner hair and tend to expose the base more than women’s hair systems.

That concludes our series of blogs on the nine hair ventilation methods we use to make our hair replacement systems. We hope you enjoyed them all. Please feel free to refer back to our previous blogs or video tutorials at any time to assist you in your business. We cannot stress enough how important it is to fully familiarize yourself with ventilating hair to allow you to make the best possible suggestions to your clients in accordance with their needs and desires. If you have not already subscribed to our newsletter then we recommend that you do so.

New Times Hair is a wholesale human hair wigs distributor and we have a team of professional sales representatives on hand to assist you with any matter be it to do with a technical aspect of a hair system or our ordering process. We take great pride in the hair systems we produce and you can rest assured of the quality of them all. If you would like any additional information about anything you have read in this article or any other information, then please do not hesitate to contact us at

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