Obagi Nu-Derm Blend Fx Review

Obagi Nu-Derm Blend Fx is a hydroquinone-free brightening cream built around 7% Arbutin and lactic acid, sold as Step 5 of the Nu-Derm Fx System but also available to buy on its own. It's an evening treatment intended to help improve the appearance of uneven tone, and it's designed to be mixed with a retinoid to help it spread more evenly across the skin.

What it is and where it fits

Blend Fx occupies the brightening step within Obagi's Nu-Derm Fx System, the dermatologist-developed, multi-step range built around cleansing, toning, exfoliation and correction steps used together rather than any single product used in isolation. It's positioned as Step 5, applied in the evening once the earlier cleansing and toning steps are done.

Like the rest of the range, it's sold both as part of a full Nu-Derm kit and as a standalone product, which is how it's stocked here — you don't need the whole system to try it, though Obagi's own routine guidance is built around the steps working together. Shop Obagi Nu-Derm Blend Fx.

The key ingredients

According to Obagi's product information, Blend Fx combines four main ingredients:

• Arbutin (7%) — a nature-identical brightening ingredient used as a hydroquinone-free alternative for supporting a more even-looking tone.
• Lactic Acid — an alpha-hydroxy acid (AHA) that supports gentle surface exfoliation alongside the brightening actives.
• Ascorbic Acid (Vitamin C) — included for its antioxidant properties.
• Tocopheryl Acetate (Vitamin E) — an antioxidant that also supports skin comfort during use.

Obagi's guidance is that Blend Fx can be mixed with a retinoid product before application, intended to help the retinoid spread more evenly across the skin rather than to boost its strength.

Blend Fx vs Nu-Derm Clear Fx

Obagi's Nu-Derm range includes more than one brightening step, and Nu-Derm Clear Fx is the other. The two are formulated differently and aren't simply stronger or weaker versions of each other, so it's worth checking which one your specific Nu-Derm kit calls for, or asking a Skintique advisor, before combining them. Read our Nu-Derm Clear Fx review.

Who it suits

• Adults dealing with an uneven skin tone, dark spots or patches of discolouration
• Those who prefer a hydroquinone-free brightening option
• Anyone already following, or considering, the wider Nu-Derm Fx System
• Skin types from dry to oily and combination, including sensitive skin — though we'd always suggest a patch test first

How to use it

Blend Fx is applied in the evening, after cleansing and toning, as part of the Nu-Derm Fx routine. If you're pairing it with a retinoid, Obagi's guidance is to mix the two in your palm before applying. As with any product containing an AHA, introduce it gradually if you're new to acids, and follow with a moisturiser if your skin feels tight. Daily SPF the following morning is essential whenever an AHA or brightening active is part of your evening routine.

If you're using Nu-Derm Exfoderm Forte as your exfoliating step, Blend Fx typically follows later in the routine rather than replacing it — the two target different parts of the resurfacing and brightening process, and Obagi's system is designed around using them together rather than swapping one for the other.

Building it into a wider Obagi routine

Blend Fx is one step within the Nu-Derm system rather than a stand-alone treatment. For the rest of the range, including exfoliation, vitamin C and retinol, see our Obagi brand hub.

Our verdict

Nu-Derm Blend Fx is a sensible, hydroquinone-free brightening step for anyone already committed to the Obagi Nu-Derm Fx System, particularly if you're also using a retinoid and want an easier way to apply it evenly. It's not designed as an isolated pigmentation cream, so if you're not following the wider system, it's worth discussing with a Skintique advisor whether a stand-alone brightening product would suit you better.

If you're pregnant or breastfeeding, please contact our team for advice before use.