Related

Standard self-tanners carry DHA at roughly 5–10%, developing a full result in one application. A gradual lotion carries 1–3%, and that difference changes the whole experience:

• Mistakes are invisible. A streak at 2% DHA is barely perceptible, where the same streak at 8% is obvious for a week. This is the entire appeal.
• The depth is controllable. Stop when it is right; keep going for more.
• No development wait, no colour guide, no shower afterwards. It is a body lotion.
• It maintains an existing tan rather than requiring a full reapplication as one fades.
• It is the safest starting point for anyone who has never self-tanned.

The chemistry is unchanged: DHA reacts with amino acids in the keratin of the stratum corneum in a Maillard reaction, producing brown melanoidins. See Self-Tanner.

• Daily, or every other day, until the depth is right, then two or three times a week to maintain.
• Onto clean, dry skin, like any lotion.
• Wash your hands afterwards — even at low concentration, palms accumulate.
• Lighter on knees, elbows, ankles and knuckles, which absorb more.
• Exfoliate once a week to keep the fade even.
• Down the neck, or a jaw line develops.

Because it builds, the failure mode is different from a standard self-tan: instead of a bad result in one go, an inconsistent routine produces a patchy gradient. Regularity is what makes it work.

It is not sun protection. A DHA tan has an SPF of roughly 3 at most. Anyone using a gradual tan through a summer still needs sunscreen — see Sunscreen Lotion.

It is also slow: a noticeable tan takes three to five days of daily use, which is the trade for the forgiveness.

Cosmetic in the US — FDA primary category (15) suntan preparations, overlapping with (14) skin care — and DHA is regulated as a colour additive, approved for external application only and explicitly not approved for the area of the eye, the lips or mucous membranes.

A product with no sunscreen and a suntanning position carries the 21 CFR 740.19 warning that it does not protect against sunburn. If it carries an SPF it is also an OTC drug under the sunscreen monograph, with a Drug Facts panel and an expiration date — and combined SPF-and-gradual-tan products do exist.

In the EU, DHA is permitted in cosmetics with SCCS-assessed conditions of use, and preservatives come from the Annex V closed positive list of 60 entries.

Six to twelve months after opening. DHA degrades in heat and at the wrong pH, giving a weaker and more orange result — and because a gradual lotion is used over months, the DHA may be doing measurably less at the end of a bottle than at the start.

Store cool and dark. A lotion that has darkened noticeably, separated, or developed a strong caramel-like off smell has degraded. Do not carry a half-used bottle over from one summer to the next.

• Sun and Tanning — the shelf this sits on, and the rest of it.
• Cosmetics — what the label is legally allowed to say, and the full catalogue.
• The rest of Sunless — Self-Tanner · Self-Tanning Mousse · Self-Tanning Drops · Tanning Water · Spray Tan Solution · Tan Remover.
• Body Lotion — the base this is built on.
• Regulatory statements here follow the FDA and EU sources listed on Cosmetics, read 16 August 2026.