There’s a lot of noise out there about silicones. Some stylists swear them off entirely. Clients ask if their products are “silicone-free.” And extension installs sometimes get blamed when the hair starts feeling dry or coated.

But let’s clear the air:

Not all silicones are bad.
And some are actually essential if you want soft, tangle-free extensions that last.

The Problem Isn't "Silicone" — It's the Type

Silicones aren’t one-size-fits-all. Some can smother the hair, creating buildup that’s hard to remove and leaves wefts feeling dry, heavy, or rough. But others? They add slip, protect from friction, and rinse clean without harsh sulfates.

Let’s break it down:

❌ Silicones to Avoid on Extensions

These are the usual suspects behind buildup, dullness, and long-term dryness. Most need strong clarifying shampoos (hello, sulfates) to remove:

• Dimethicone

• Amodimethicone

• Trimethicone

• Cyclomethicone

• Phenyl Trimethicone

If a client is using these regularly without a proper detox routine, it won’t take long before their extensions start feeling off — tangled, dry, or just lifeless.

✅ Silicones That Are Extension-Safe

These are the good guys — more water-soluble, lightweight, and actually helpful for maintaining softness and manageability:

• PEG-12 Dimethicone

• Dimethicone Copolyol

• Lauryl Methicone Copolyol

• PEG-/PPG-modified silicones

They’re often found in products that reduce friction (aka one of the biggest causes of extension damage). Think detanglers, light leave-ins, and oils meant for mid-to-ends use only.

So… Should You Avoid Silicones Altogether?

No. You should get smart about which ones you’re using.

If a product leaves hair feeling coated, heavy, or dry over time — it’s probably the wrong silicone (or too much of it). But the right kind?

✔️ Makes brushing easier
✔️ Prevents friction-based breakage
✔️ Keeps the hair feeling soft and fresh between washes

Mourning Hair-Approved: 3 Silicone-Safe Products

Want a quick cheat sheet of stylist-approved options?

Here are three we love:

1. UNITE 7SECONDS Detangler

• Silicone: PEG-12 dimethicone

• Why it's great: Lightweight, hydrating, and perfect for brushing extensions without buildup.

• Bonus: No protein.

2. R+Co Waterfall Moisture + Shine Lotion

• Silicone: PEG-12 Dimethicone

• Why it's great: Smooths and softens without weighing hair down. A solid choice for mid-to-end moisture.

• Bonus: Protein-free.

3. Kevin Murphy Young.Again Oil

• Silicone: Cyclopentasiloxane (evaporates quickly)

• Why it's great: Adds softness without heaviness. Great as a finishing product — just keep it off the seam.

• Bonus: Also protein-free.
  

Silicones aren’t the villain. But knowing the difference between those that protect vs. those that coat? That’s stylist gold.

Share this with your clients, drop it in your aftercare guides, and feel good knowing you're keeping those wefts looking and feeling amazing for the long haul.