Peter Thomas Roth Instant FirmX Glow Priming Serum.

Serums

About this product

A lightweight priming serum designed to create a subtle glow and smooth the skin's texture before makeup application.

Full ingredients

Water/Aqua/Eau, Glycerin, Butylene Glycol, Isononyl Isononanoate, Citrus Aurantium Bergamia (Bergamot) Fruit Water, Dimethicone, Butyrospermum Parkii (Shea) Butter, Caprylic/Capric Triglyceride, Glyceryl Stearate, Polyglyceryl-6 Distearate, Cetearyl Alcohol, Sorbitan Stearate, Isostearyl Alcohol, Mica, Butylene Glycol Cocoate, Bacillus/Soybean Ferment Extract, Diamond Powder, Niacinamide, Sodium Hyaluronate, Sodium Hydroxide, Citric Acid, Glutamic Acid, Glycine, Histidine, Isoleucine, Leucine, Lysine, Phenylalanine, Alanine, Arginine, Proline, Serine, Threonine, Tyrosine, Valine, Sodium Phytate, Sodium Lactate, Silica, Ethylcellulose, Potassium Sorbate, Sodium Benzoate

Guru Score

76%

Yay

Early verdict · Few reviews so far

What the gurus are saying

This serum delivers a gentle bronze glow without looking overdone, and reviewers found it applies smoothly without the flaking or caking that sometimes plagues similar products. It works well on days you want a light luminous finish, or mixed into foundation for a softer effect, though not many gurus have tested it yet, so there's limited perspective so far.

Synthesized from 2 expert reviews · most recent take August 2024

What they liked

Delivers a subtle bronze glow
Smooth, pleasant texture

What they flagged

Nothing. None of the experts who reviewed it raised a problem.

Type

SerumsDrops & dropper

Key actives

Niacinamide Hyaluronic acid

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

Sephora → Ulta → Amazon → Google →

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Dr Dray

2.69M subs

✓Mixed

"A lot of people who use this find that their makeup starts getting very cakey and flaky and the product gets dry and kind of crusty. I've tried this and I reviewed it, I didn't experience the crusty flaky stuff with it, but I have tried others similar to this because there are a lot of these types of products, [...] and I have encountered the flaky stuff with others. This is a new product in that line and [...] it's a primer serum now. It is tinted, but it's kind of tinted."

No BS Beauty

89k subs

✓Yay

"I really like this one. It [...] gives your skin kind of a nice bronze glow that's not like over the top. [...] I kind of like it, it gives me a little bit of glow which is fine on days I'm not using a tinted sunscreen or anything like that or mixing in a bronzer. It feels really nice."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Niacinamide

Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.

Source: DermNet

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is Peter Thomas Roth Instant FirmX Glow Priming Serum?

A lightweight priming serum designed to create a subtle glow and smooth the skin's texture before makeup application.

Is Peter Thomas Roth Instant FirmX Glow Priming Serum worth it?

Mostly yes. 1 of the 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 76%.

What is Peter Thomas Roth Instant FirmX Glow Priming Serum's Guru Score?

Peter Thomas Roth Instant FirmX Glow Priming Serum holds a Guru Score of 76%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.