Most retinol failures are pacing failures, not tolerance failures. A client started at two or three nights a week, with barrier support alongside and a clear warning about week three, stays on the product. A client handed a bottle and told to use it nightly stops within a month and reports that it did not suit them. Renew Serum and GlyPro Retinol Drops are the two entry points, and the choice between them is about the client's concern rather than how much their skin can take.
Key takeaways
- The adjustment period is a pacing problem. Retinisation is a protocol, not a rite of passage.
- Start at two or three nights a week and hold for a fortnight. Both formulas are directed for two to seven nights.
- Renew Serum for congestion, oil and visible pores. GlyPro Retinol Drops for texture, fine lines and tone.
- Neither suits sensitive skin. For a reactive client the answer is the plant-based route, not a slower ramp.
- Warn about week three at the point of sale. A warned client persists. A surprised client returns the bottle.
Ask a room of clinic owners where they lose retail clients and retinol comes up before anything else. Not at the point of sale, where retinol sells itself on reputation, but three or four weeks later, when the client stops using it and quietly does not come back for more.
What happened in those three weeks is predictable, manageable and almost always the same thing. It is worth walking through, because retinol is one of the few categories where a five-minute conversation at the point of sale changes the repurchase rate.
What the client experiences, and what they conclude
Retinoids accelerate cell turnover. The barrier takes a few weeks to adapt to the new rate, and during that adjustment the skin can look and feel worse: dryness, fine flaking around the nose and mouth, tightness, and congestion surfacing that was already there. This is the period the internet has taught your clients to call a purge.
The client's own interpretation is rarely so generous. Left without a warning, they conclude one of two things: that they are allergic to it, or that the product is at fault. Both conclusions end the same way. The bottle goes in a drawer, and the next conversation you have with them is about something else.
The client who was told, in advance and without drama, that week three is the difficult one and that it settles, behaves entirely differently. They ring the clinic instead of stopping. That phone call is the whole difference.
The ramp
Both formulas are directed for evening use, two to seven nights a week, introduced gradually. Nightly is the ceiling of that range, not the target, and the pacing that gets a client there is unglamorous and works.
Weeks one and two: two to three nights a week. Onto clean, dry skin, followed by moisturiser once it has absorbed. Nothing else active on those nights.
Weeks three and four: add one night, provided the skin is settling rather than escalating. This is the point where most clients want to increase faster because they can see it working. Hold them.
Weeks five to eight: build toward alternate nights, and to nightly only if the skin stays comfortable at that frequency. Plenty of clients do well long-term at four nights a week and never need more. A tolerated routine that continues for years is the goal.
For a client you expect to struggle, applying moisturiser first and the serum over it for the opening fortnight slows delivery and takes the edge off the adjustment. That is a tolerance technique rather than the standard direction, and it comes off once the skin has settled.
Two rules that hold throughout. No acids on a retinol night while the client is ramping. And the eye area is left alone unless they are using a product formulated for it.
Which formula for which client
Both carry retinol alongside glycolic acid, so neither is the gentle option. The choice between them is what the skin is doing, not how much it can tolerate.
Renew Serum. Retinol, glycolic acid and salicylic acid, in the Clarify + Balance category. Sold until recently as Beta-Clarity BHA Drops, the same formula in an airless pump. The salicylic component is what makes this the choice for congestion, visible pores and excess oil. In an independent clinical study, 93% of users reported reduced excess oil and 87% reported a reduction in the appearance of pores after one week, with 90% reporting brighter, healthier-looking skin and smoother texture at thirty days. Suits all skin types except extremely sensitive.
GlyPro Retinol Drops. Retinol, glycolic acid and gallic acid, in the Resurface + Smooth category. The gallic acid adds antioxidant support and helps inhibit tyrosinase, the enzyme involved in melanin production, which is why this formula does tone work alongside texture work. Formula pH 2.3, evening use only. In an independent study of 31 volunteers aged 35 to 53, 90% said skin felt smoother and 74% reported visibly improved fine lines and wrinkles after one month. Not suitable for sensitive skin, and avoided in pregnancy unless a medical professional directs otherwise.
The reactive client: neither of the above. A client with sensitive or compromised skin who wants what retinol does needs the plant-based route rather than a slower ramp on a formula their skin cannot take. Bio-Renew EGF Cream carries a Phyto-Retinol Complex and is suitable for sensitive skin. Bio-Renew EGF Eye Cream uses bakuchiol, which suits all skin types and is safe in daylight. Choosing a formula the skin tolerates is not the same as going slowly on one it does not.
The reference entry for the ingredient sits in the Glo ingredient library, and the full range is in the retinol collection.
What goes alongside it
Barrier Balm belongs on the same prescription, not offered later when the client rings in difficulty. Framed correctly, it is the reason the retinol works: it supports the barrier through the adjustment so the client can stay on the active rather than abandoning it. For a client who is already reactive, or presenting with the barrier signs set out in the sensitivity epidemic, Phyto-Calm Aloe Drops are the calmer route and the retinol conversation waits.
SPF is not optional alongside a retinoid, and the direction on the bottle says so. It is the same conversation as post-treatment SPF, for the same reasons, and it applies every day of the year.
Retinol and the treatment room
Two points where home retinol meets your clinical work.
Retinoids are paused before a peel. A client on nightly retinol who arrives for a Level 4 or above without having stopped is a different skin from the one you assessed, and the pre-peel protocol in before and after a peel exists for that reason. Build the pause into the booking conversation rather than discovering it on the day.
In the room, Retinol + C Peel Boost Max is the professional-strength retinol option, used standalone or added to another peel. Back bar only, and it never appears in a retail conversation.
Why this is a commercial point
A client who gets through retinisation uses the product continuously and replaces the bottle several times a year, for years. A client who stops at week three buys once, and the story they tell about it is that the product your clinic recommended did not suit their skin.
The gap between those two outcomes is one conversation at the point of sale, and a note in the diary to check in at week three.
FAQs
How should a client start using retinol?
Two to three nights a week for the first fortnight, applied to clean dry skin in the evening and followed by moisturiser. Add a night at a time only if the skin is settling, building toward alternate nights and to nightly only if it stays comfortable. Both Glo retinol serums are directed for two to seven nights a week, so nightly is the ceiling rather than the target. No acids on a retinol night during the ramp.
Why does skin get worse before it gets better on retinol?
Retinoids accelerate cell turnover and the barrier takes a few weeks to adapt to the new rate. During that adjustment the skin can be dry, flaky and tight, with existing congestion surfacing. It settles for most clients, but only if they are warned in advance. Without a warning, clients conclude they are allergic or that the product is at fault, and stop around week three.
Which Glo retinol should a client be given?
It follows the concern rather than the tolerance, because both formulas pair retinol with glycolic acid. Renew Serum adds salicylic acid and suits congestion, excess oil and visible pores. GlyPro Retinol Drops add gallic acid and suit texture, fine lines and uneven tone. Neither is suitable for sensitive skin, so a reactive client is better served by the plant-based route in Bio-Renew EGF Cream or the bakuchiol in the EGF Eye Cream.
The retinisation conversation is scripted in the Consultation Scripts Pack, and the full protocols are in the Glo Pro protocol library. Questions, call 01636 402521 or email pro@gloskin.beauty.