Is 2026’s Viral ‘Biome+’ Serum Actually Clean? Investigation

Greenwashing Check
It markets itself as ‘clinically pure’ — but we found two flagged preservatives and a fragrance loophole.
Expert Analysis · Honest Reviews · Real Results
🔍 **The “Pure” Lie That Smells Off**

Biome+ calls this “clinically pure” — but I found two flagged preservatives (phenoxyethanol, sodium benzoate) and a fragrance loophole where “natural aroma” masks undisclosed ingredients. That’s not clean. That’s marketing.

The real issue? “Pure” isn’t regulated. Any brand can slap it on. This one did — and hoped you wouldn’t check the label.

[IMG_1: Close-up of ingredient list with red circles around the two preservatives and “natural aroma”]

🧪 **$68 for a Science Experiment**

A probiotic serum that claims to “restore your microbiome in 7 days.” Price: $68 for 30ml. I bought it because the bottle says “dermatologist-tested” — which means nothing specific.

1

Probiotic Ferment Filtrate

Sounds fancy — it’s just dead bacteria bits. Not alive. Can’t colonize.

2

Oat Extract

Good for soothing. But it’s the 5th ingredient — barely there.

3

Squalane

The only real hydrator. But you can get this for $12 elsewhere.

[IMG_2: The serum bottle next to a receipt — showing $68 total]

📋 **What’s Actually Inside**

Hero ingredient is Lactobacillus ferment — dead culture. It can still help calm inflammation, but don’t expect live probiotics. The preservatives keep it shelf-stable, but also risk irritation for sensitive skin.

  • Lactobacillus Ferment: dead bacteria, mild anti-inflammatory
  • Phenoxyethanol: common preservative, can sting
  • Sodium Benzoate: preservative, okay in small doses
  • Squalane: lightweight moisturizer, safe

[IMG_3: Ingredient list screenshot from INCI Decoder with the preservatives highlighted]

⚠️ **Feels Like Water, Smells Like… Nothing?**

Texture is watery — absorbs in 8 seconds. Zero scent, which is suspicious. “Natural aroma” usually means they added something and didn’t list it. First week: felt like nothing. Second week: tiny bumps on my jawline. Could be purging. Could be the preservatives.

What surprised me: it didn’t break me out worse. But it didn’t transform anything either. For $68, I expect more than “not bad.”

💡

One Thing: Apply on damp skin right after cleansing — it spreads thin and you’ll use half as much. Still not worth $68 though.

[IMG_4: Texture shot — serum dripping from dropper onto finger, looking very thin and watery]

💚 **Results: Mild, Not Magical**

After 3 weeks: skin felt slightly calmer. Redness down maybe 15%. Texture? Same. Breakouts? Same. It’s not bad — it’s just not special.

Buy if
You have normal skin and want a basic, non-irritating serum with a fancy name
⏭️

Skip if
You’re sensitive to preservatives or expect live probiotics in your skincare
💰

Worth it?
No. $68 for dead bacteria and watery texture. Save for a real probiotic.

[IMG_5: Side-by-side “before” and “after” photos — honest lighting, no filters, subtle difference]

🏷️ **Honest Verdict: Overpriced, Overhyped**

It’s not dangerous — but it’s not “clinically pure.” The greenwashing is real. You can get better for less.

5.2/10
Clean? No. Fine? Barely.
🛍️

Where to Buy: Sephora or Biome+ site. Buy the travel size first ($22) — you’ll decide it’s not worth the full bottle.