A sew-in is an investment — in time, in money, and in your natural hair underneath. A few simple habits are all it takes to protect that investment and keep your install looking salon-fresh for its full lifespan.
The bonnet is non-negotiable
A satin bonnet is the single most important tool in maintaining your sew-in. It protects the weave hair from frizz and friction overnight, and it protects your leave-out from tangling while you sleep.
Sleeping without a bonnet — even on a regular pillowcase — causes unnecessary stress to your install. Over time, the friction accelerates frizz on both the weave and your natural hair, and shortens the life of the style considerably.
A satin bonnet also helps your leave-out stay blended and manageable without needing to re-apply heat every morning.
Handle your leave-out gently
Your leave-out — the natural hair that blends the front of your install — often shows the most wear. Keep it moisturized with a light leave-in conditioner or cream, and avoid pulling or manipulating it more than necessary.
If you need to use heat to blend your leave-out with the weave, use a heat protectant every single time. Your leave-out doesn't have the durability of the weave hair — it's your real hair, and it needs to be treated that way.
The 6–8 week limit
Like braids, sew-ins should come out by 6–8 weeks. Leaving them in longer allows the natural hair underneath to mat against the tracks, which makes removal difficult and can lead to breakage. At 6–8 weeks, new growth can also cause the tracks to feel uneven or loose.
After removal, give your hair a break — deep condition, clarify the scalp, and let it breathe before going back in with another install.