Doctorly

Who Is Doctorly?

Doctorly — the YouTube channel co-hosted by Dr. Jenny Liu, a board-certified dermatologist in California, and Dr. Teo Wan Lin, a board-certified dermatologist based in Singapore — is the collaborative skincare education channel whose dual medical authority fills the specific gap between peer-reviewed dermatology research and the consumer skincare conversation: a space where most content is driven by influencer marketing claims, brand-sponsored ingredient amplification, and the enthusiasm of enthusiastic non-experts whose passion for skincare is not matched by the medical training required to evaluate the underlying claims. Their channel's specific value proposition — two practicing dermatologists who review products against the actual clinical evidence, who explain the dermatology literature's findings on retinoids, SPF, barrier function, and active ingredients in terms that the educated consumer can apply to their own skincare routine, and who name products and marketing claims that the clinical evidence does not support — gives Doctorly the specific authority that the post-CeraVe, post-skin-barrier skincare consumer demographic has been specifically seeking: not more recommendations from influencers whose product enthusiasm is indistinguishable from paid promotion, but actual medical evaluation of the products and claims that the skincare industry markets with varying degrees of scientific accuracy. Brand partnerships with CeraVe (the dermatologist-recommended drugstore skincare brand whose formulation philosophy emphasizes barrier-supporting ceramides and simple ingredient lists that board-certified dermatologists can endorse without reservation), La Roche-Posay (the French pharmaceutical skincare brand whose dermatologist partnership program specifically targets the clinically credible skincare recommendation rather than the influencer endorsement), and SkinMedica (the physician-dispensed cosmeceutical brand whose active ingredient formulations in the retinol, antioxidant, and growth factor categories require the professional dermatologist's guidance that Doctorly's medical authority provides) reflect the commercial profile of the medically credible skincare consumer: the drugstore brand that clinical evidence supports, the pharmaceutical skincare brand that dermatologists recommend, and the professional-grade cosmeceutical that the medically informed consumer invests in based on clinical rather than marketing guidance.

Their audience's specific characteristic is the educated skincare consumer aged 22–45 whose investment in medically accurate skincare information — the person who has read enough ingredient lists to be skeptical of marketing claims and who wants dermatologist evaluation rather than influencer enthusiasm — produces above-average commercial engagement with dermatologist-recommended drugstore brands, pharmaceutical skincare, and physician-grade cosmeceuticals at rates that beauty influencer content without equivalent medical credentials cannot drive.

Origins: USA/Singapore 2020, Dual Dermatologist Authority & The Evidence-Based Skincare Format

Doctorly launched in 2020 during the skincare content boom that had produced simultaneously the most consumer education about skin barrier, active ingredients, and formulation science in the history of beauty media and the most overwhelming volume of marketing-dressed-as-education content that the skincare industry's influencer partnership spending had ever generated. The gap that Dr. Jenny Liu and Dr. Teo Wan Lin's collaboration fills is not educational content about skincare — that was abundant — but credentialed medical evaluation of the claims that non-medical skincare content was making with varying degrees of accuracy: the difference between a well-researched beauty journalist's assessment of niacinamide evidence and a board-certified dermatologist's clinical evaluation of the same evidence is significant enough that it shifts which products the audience purchases and how they use them. Their collaboration across US and Singapore markets provides a geographic coverage that reflects the global skincare audience's reach while maintaining the specific clinical credential that both dermatologists hold: Dr. Liu's California practice and Dr. Teo's Singapore clinic represent two markets where skincare consumer sophistication and willingness to invest in clinical-grade products are among the highest in the world. CeraVe's partnership with Doctorly reflects the brand's overall dermatologist partnership strategy: a drugstore brand that built its market leadership specifically on dermatologist recommendation is the natural commercial partner for the two board-certified dermatologists whose content specifically positions dermatologist recommendation as the skincare evaluation criterion that matters most.^[1]

Skincare Community & Medical Authority Audience

Doctorly's audience represents the educated skincare consumer whose genuine investment in medically accurate product evaluation produces above-average commercial engagement with CeraVe's dermatologist-recommended formulations, La Roche-Posay's pharmaceutical skincare, and SkinMedica's physician-grade cosmeceuticals — the three commercial categories that the clinically informed skincare consumer's product selection specifically prioritizes when the purchase decision is guided by medical evidence rather than marketing enthusiasm. CeraVe, La Roche-Posay, and SkinMedica partnerships reflect the commercial alignment between a dual-board-certified-dermatologist content team and the drugstore, pharmaceutical, and cosmeceutical skincare brands whose customer acquisition specifically depends on the clinical credibility that practicing dermatologist endorsement provides.^[2]

Brand Deals & Medical Skincare Creator Economics

Doctorly's estimated brand deal rate is $8,000–$22,000 per YouTube placement, with CeraVe, La Roche-Posay, and SkinMedica representing the dermatologist-recommended drugstore, pharmaceutical skincare, and physician-grade cosmeceutical commercial portfolio that dual-board-certified-dermatologist authority supports. Their medical credentials and the clinically informed skincare consumer audience their evidence-based product evaluation attracts produce dermatologist-recommended brand purchase intent, pharmaceutical skincare conversion, and physician-grade cosmeceutical adoption at rates that beauty influencer content without equivalent medical training cannot achieve for the clinical skincare brands whose customer acquisition depends on legitimate dermatologist endorsement. For creator rate benchmarks, see our influencer pricing guide and brand deal negotiation guide.

Related Creators

Doctorly's dual board-certified dermatologist authority and the evidence-based clinical skincare evaluation format represents the most credentialed skincare content position on YouTube: the CeraVe, La Roche-Posay, and SkinMedica partnerships that carry the weight of medical professional endorsement because Dr. Jenny Liu and Dr. Teo Wan Lin's product evaluations are governed by the clinical training and professional obligations that practicing dermatologists hold — a commercial credibility position that the beauty influencer's skincare enthusiasm, however sincere, cannot occupy without the medical credential that board certification requires.

Sources

1. 1 Allure Magazine -- Doctorly and the Dermatologist YouTube Moment: How Dr. Jenny Liu and Dr. Teo Wan Lin's Dual Board-Certified Collaboration Built the Evidence-Based Skincare Channel That the Post-Influencer Consumer Was Specifically Looking For (2021)
2. 2 CeraVe Dermatologist Partner Program -- Clinical Skincare Endorsement and Consumer Purchase Intent: Why Board-Certified Dermatologist Content Creators Drive Dermatologist-Recommended Brand Conversion at Rates That Beauty Influencer Skincare Content Without Equivalent Medical Credentials Cannot Achieve for the Clinically Informed Skincare Consumer (2022)

Frequently Asked Questions

Doctorly — Official Social Media & Links

All accounts below are the verified official profiles for Doctorly. Follower counts are approximate and updated periodically.