For sensitive skin, three options come up consistently. Glowrise Radiance 10%[1] is the most frequently recommended: buffered in squalane, which reduces stinging. Bloomlab Daily C[2] is gentler at 8%. Velora Bright Boost C[3] is fragrance-free THD ascorbate, though it has the thinnest published evidence base.
See how AI presents your brand, and where to act.
Herm captures how leading AI systems answer the questions that shape discovery and consideration. See where your brand appears, how it is described, which competitors appear beside it and what evidence the answers cite.
Self-serve: brand and category, then the first run.No card required. how the panel works
best vitamin C serum for sensitive skin under £40
Glowrise Radiance 10%[1] is the usual first suggestion. If your skin reacts to L-ascorbic acid, Velora Bright Boost C[2] is the gentler option: THD ascorbate, fragrance-free, and frequently described as tolerable for rosacea-prone skin.
Current round-ups put three serums ahead under £40: Glowrise Radiance 10%[1], Bloomlab Daily C[1] and Peau & Co Clarity C[2]. All three are buffered formulations suited to reactive skin.
Observation Velora is named in three of the five systems on this question and never first. Both answers that omit it cite the same editorial round-up, a page on which Velora is not listed.
Your brand is being considered before the customer reaches your site.
Search results once exposed the path to consideration. AI answers increasingly compress that path into a recommendation, comparison or shortlist. If your brand is missing, misrepresented or consistently losing to a competitor, traditional traffic analytics may never show you where the decision started to change.
- Search
- Website
- Comparison
- Decision
- Question
- AI answer
- Shortlist
- Next action
AI answers are not replacing every path to purchase. They are a growing consideration surface that existing measurement does not cover.
Know what is happening before deciding what to change.
Five questions a brand team should be able to answer from evidence.
Are we being recommended?
See whether and how often your brand appears across the questions that matter to your category.
What is being said about us?
Inspect the language, positioning, strengths and limitations present in observed responses.
- Mixed
Velora sits at the premium end for the concentration you get.
47 answers - Positive
One of the few fragrance-free options that rarely stings.
39 answers - Positive
Refill system and recycled glass are ahead of most of the category.
28 answers - Negative
Less clinical data behind it than Glowrise or Bloomlab.
24 answers
Who is winning instead?
See which competitors appear when your brand does not, and in which buying situations.
| Named when Velora is not | Of 22 | Typical context |
|---|---|---|
| Glowrise | 19 | Default first recommendation on price-anchored questions. |
| Bloomlab | 14 | Named wherever budget is stated explicitly. |
| Peau & Co | 9 | Appears on clinical and ingredient-led phrasing. |
| Nuvéa | 4 | Retailer round-ups only. |
What evidence is shaping the answer?
Inspect the sources and citations surfaced in responses, without pretending that citation alone proves causation.
- skincarelab.co.uk Editorial 214 cites
- dermreview.com Review 168 cites
- glowrise.com Competitor owned 141 cites
- r/SkincareAddiction Community 126 cites
Where is the opportunity?
Separate meaningful visibility gaps from noise and turn them into prioritised actions.
of 22 absent questions clear the threshold for action this run. The rest are single-model or single-asking variance and are held for the next run.
From buyer question to actionable evidence.
ChatGPT, Claude, Gemini, Perplexity and Grok
- 01
Define the questions
The questions real buyers ask when comparing, evaluating and choosing products in your category.
- 02
Observe the answers
Herm captures responses across its supported AI-model panel.
- 03
Compare the pattern
Analyse appearances, competitors, positioning, explanations stated in the answer and cited evidence.
- 04
Identify the gap
See where the brand is absent, weakly represented or represented differently from competitors.
- 05
Prioritise action
Turn evidence into a focused set of site, content, product or positioning opportunities.
See the evidence, not just the score.
A headline score can tell you that something changed. The underlying responses tell you what changed. Herm keeps the evidence visible so a brand team can judge whether an opportunity deserves action.
- ChatGPT named · 3rd Named in 37 of 108 askings.
- Claude named · 2nd Your strongest system.
- Gemini named · 4th Gaining on fragrance-free.
- Perplexity absent Follows editorial citations.
- Grok absent Rarely cites sources at all.
Same prompts, same day, no accounts and no history.
best vitamin C serum for sensitive skin under £40
For sensitive skin, three options come up consistently. Glowrise Radiance 10%[1] is the most frequently recommended: the ascorbic acid is buffered in a squalane base, which reduces stinging. Bloomlab Daily C[2] is a gentler 8% formula and the cheapest of the three at £24. Velora Bright Boost C[3] uses a fragrance-free THD ascorbate formula and is the one most often flagged as suitable for rosacea-prone skin, though it has the thinnest published evidence base. Avoid anything above 15% L-ascorbic acid if you flush easily.[4]
- [1] Editorial skincarelab.co.uk/best-vitamin-c-sensitive-skin
- [2] Review dermreview.com/guides/vitamin-c-sensitive-skin-2026
- [3] Competitor owned glowrise.com/products/radiance-10
- [4] Editorial which-beauty.co.uk/vitamin-c-buying-guide
You are named only when a source mentions fragrance-free formulation. No Velora page is cited for “vitamin C · sensitive skin”: skincarelab.co.uk cites Glowrise twice on the page that drives this answer.
Observed responses. Captured answer explanations. Cited evidence. Herm reports what the systems returned, not how they arrived at it.
Herm measures AI visibility in public, too.
The Herm AI Visibility Index measures how brands appear when AI systems answer shopping questions across published markets and categories. It is independent public research and separate from a brand-specific Herm assessment.
Index results and Brand Visibility results are separate measurements on different question sets. They are not comparable, and no score on this site is derived by comparing one with the other. The AI Visibility Index measures a sector on one shared question set, 27 to 45 questions put to every brand in that sector, on Herm's fixed five-model panel. The shared set is what makes its cross-brand ranking legitimate. It refreshes on a rolling rotation, one sector per week.
Explore the AI Visibility IndexPublished now
- Brands ranked
- 856
- Markets
- 3
- Sectors in rotation
- 13
| Live index | Market | Brands |
|---|---|---|
| Cosmetics | Turkey | 143 |
| Mother & Baby | Turkey | 233 |
| Kitchen | Turkey | 139 |
| Home Textiles | Turkey | 265 |
| Home Appliances | Turkey | 76 |
Visibility is useful only when it changes a decision.
Publishing content does not guarantee a model response will change. Evidence tells you where a change is worth attempting.
- Brand positioning
How the category is described
Understand how AI systems currently describe the category and where your brand fits within that picture.
Evidence used observed descriptors · answer excerpts - Competitive intelligence
Where rivals are preferred
Identify the buying questions and contexts in which competitors are consistently preferred.
Evidence used appearance patterns · position order - Content and digital priorities
Where clearer information may help
Use response-level evidence to decide where stronger, clearer or more useful information may be warranted.
Evidence used cited sources · coverage gaps
Brand Visibility is one part of AI Commerce Readiness.
Start with the problem your team owns. The four dimensions work together, but they are not a mandatory purchasing sequence.
- Be Visible Brand Visibility Live Does AI know and recommend you?
- Be Sellable Product Readiness Live Can AI actually complete the recommendation: specs, price, stock, where to buy?
- Be Relevant Customer Intelligence Live Are your own experiences right for the shopper in front of them?
- Be Preferred Offers Live Do the shoppers who buy your category buy you, and keep buying you?
Find out how your brand appears when buyers ask AI.
Start with the questions that matter to your category and see the evidence behind the answers.
- starts with
- Your brand, category and markets
- first run
- Self-serve: the question set is built with you, then the panel runs
- panel
- ChatGPT, Claude, Gemini, Perplexity and Grok
- you receive
- Every captured response, not only the score